The Big Bang Theory

Wednesday, April 29

The Hook-Up Reverberation

Season 8 • Episode 4

Raj's honesty comes back to haunt him when his new girlfriend is unfriendly to Penny.

Wednesday, April 29

The Focus Attenuation

Season 8 • Episode 5

During their weekend in Las Vegas, Bernadette and Amy accuse Penny of being a buzz kill.

Wednesday, April 29

The Expedition Approximation

Season 8 • Episode 6

Raj and Sheldon try to simulate a dark-matter research expedition; Penny and Leonard have a fight.

Wednesday, April 29

The Misinterpretation Agitation

Season 8 • Episode 7

The guys try to help when Penny is faced with an awkward dilemma at work.

Thursday, April 30

The Prom Equivalency

Season 8 • Episode 8

Sheldon feels pressured to participate in traditions when the gang re-creates a high-school prom.

Thursday, April 30

The Re-Entry Minimization

Season 6 • Episode 4

Wolowitz's return from space isn't all he expected; game night becomes a gender war.

Thursday, April 30

The Opening Night Excitation

Season 9 • Episode 11

After dating for more than five years, Amy and Sheldon spend the night together for the first time.

Thursday, April 30

The Sales Call Sublimination

Season 9 • Episode 12

Leonard meets with a psychiatrist; Wolowitz and Bernadette struggle when Stuart moves out.

Thursday, April 30

The Empathy Optimization

Season 9 • Episode 13

Leonard, Penny and the gang attempt to treat themselves to a Sheldon-free weekend.

Thursday, April 30

The Meemaw Materialization

Season 9 • Episode 14

Sheldon's excitement about his Meemaw's visit fades when she butts heads with Amy.

Thursday, April 30

The Valentino Submergence

Season 9 • Episode 15

Amy and Sheldon host a Valentine's Day edition of Fun With Flags; Raj is torn between two women.

Thursday, April 30

The Positive Negative Reaction

Season 9 • Episode 16

The gang celebrates news of Bernadette's pregnancy by singing karaoke.

Thursday, April 30

The Perspiration Implementation

Season 9 • Episode 5

Barry Kripke expresses interest in Amy while leading a fencing lesson for the guys.

Thursday, April 30

The Work Song Nanocluster

Season 2 • Episode 18

Penny's home business turns into a complete nightmare when Sheldon takes over.

Thursday, April 30

The Spock Resonance

Season 9 • Episode 7

Sheldon struggles to keep his emotions in check when he is interviewed for a documentary.

Thursday, April 30

The Mystery Date Observation

Season 9 • Episode 8

Sheldon, Wolowitz and Koothrappali post an ad online to find a new girlfriend for Sheldon.

Thursday, April 30

The Platonic Permutation

Season 9 • Episode 9

Amy and Sheldon spend Thanksgiving at the aquarium -- as friends.

Thursday, April 30

The Earworm Reverberation

Season 9 • Episode 10

Sheldon has a song stuck in his head; despite their awkward date, Amy asks Dave over for dinner.

Thursday, April 30

The Opening Night Excitation

Season 9 • Episode 11

After dating for more than five years, Amy and Sheldon spend the night together for the first time.

Thursday, April 30

The Sales Call Sublimination

Season 9 • Episode 12

Leonard meets with a psychiatrist; Wolowitz and Bernadette struggle when Stuart moves out.

Thursday, April 30

The Space Probe Disintegration

Season 8 • Episode 12

The guys agree to do something the girls like; Leonard and Sheldon butt heads.

Thursday, April 30

The Anxiety Optimization

Season 8 • Episode 13

Sheldon asks his friends to challenge him in hope of achieving a scientific breakthrough.

Friday, May 1

The Troll Manifestation

Season 8 • Episode 14

Sheldon and Leonard must defend themselves from an online bully's criticism after writing a paper.

Friday, May 1

The Holographic Excitation

Season 6 • Episode 5

The gang heads to Stuart's comic book store to celebrate Halloween.

Friday, May 1

The Celebration Experimentation

Season 9 • Episode 17

For the first time in nine years, the gang celebrates Sheldon's birthday.

Friday, May 1

The Application Deterioration

Season 9 • Episode 18

The guys file for a patent on their invention; the girls give dating advice to Koothrappali.

Friday, May 1

The Solder Excursion Diversion

Season 9 • Episode 19

Sheldon makes a revelation when Amy buys him a new laptop; Leonard and Wolowitz lie to their wives.

Friday, May 1

The Big Bear Precipitation

Season 9 • Episode 20

Sheldon shares a secret about Leonard when they go on a weekend trip with Penny and Amy.

Friday, May 1

The Viewing Party Combustion

Season 9 • Episode 21

The gang must choose sides when an argument between Sheldon and Leonard turns into a heated debate.

Friday, May 1

The Fermentation Bifurcation

Season 9 • Episode 22

The gang runs into Penny's ex while out at a wine bar; Bernadette spends an evening with Sheldon.

Friday, May 1

The Line Substitution Solution

Season 9 • Episode 23

Sheldon wants to go to a movie screening, so he pays Stuart to spend the day with Amy.

Friday, May 1

The Fermentation Bifurcation

Season 9 • Episode 22

The gang runs into Penny's ex while out at a wine bar; Bernadette spends an evening with Sheldon.

Friday, May 1

The Dead Hooker Juxtaposition

Season 2 • Episode 19

Penny has a rivalry with a new neighbor who threatens her position as queen bee of the building.

Friday, May 1

The Convergence Convergence

Season 9 • Episode 24

Leonard's recently divorced parents and Sheldon's devoutly religious mother visit.

Friday, May 1

The Conjugal Conjecture

Season 10 • Episode 1

The group deals with the aftermath of Sheldon's mother and Leonard's father's evening together.

Friday, May 1

The Military Miniaturization

Season 10 • Episode 2

Wolowitz has a meeting with Colonel Williams, a representative from the Air Force.

Friday, May 1

The Dependence Transcendence

Season 10 • Episode 3

Sheldon tries an energy drink as the gang races to finish its government project on time.

Friday, May 1

The Cohabitation Experimentation

Season 10 • Episode 4

After her apartment floods, Amy suggests that she and Sheldon move in together.

Friday, May 1

The Comic Book Store Regeneration

Season 8 • Episode 15

The gang waits for the reopening of the comic book store; Wolowitz gets some shocking news.

Friday, May 1

The Intimacy Acceleration

Season 8 • Episode 16

Penny and Sheldon design an experiment -- as a joke -- to make participants fall in love.

Friday, May 1

The Colonization Application

Season 8 • Episode 17

Amy finds out that Sheldon applied for a one-way mission to colonize Mars.

Friday, May 1

The Leftover Thermalization

Season 8 • Episode 18

A magazine article only credits Sheldon in an article about a paper he co-wrote with Leonard.

Saturday, May 2

The Skywalker Incursion

Season 8 • Episode 19

While on their way to UC Berkeley, Sheldon and Leonard take a detour in hope of meeting an idol.

Saturday, May 2

The Pork Chop Indeterminacy

Season 1 • Episode 15

Leonard, Wolowitz and Koothrappali fall for Sheldon's twin sister.

Saturday, May 2

The Peanut Reaction

Season 1 • Episode 16

Penny learns that Leonard does not celebrate birthdays, so she plans a surprise party.

Saturday, May 2

The Tangerine Factor

Season 1 • Episode 17

Leonard finally works up the courage to ask Penny out on a date, and both ask Sheldon for advice.

Saturday, May 2

The Bad Fish Paradigm

Season 2 • Episode 1

Penny's first date with Leonard goes awry; Penny finds Sheldon to be an unwilling confidant.

Saturday, May 2

The Codpiece Topology

Season 2 • Episode 2

Leonard rushes into a rebound relationship with Sheldon's nemesis.

Saturday, May 2

The Barbarian Sublimation

Season 2 • Episode 3

Sheldon creates a monster when he introduces Penny to online gaming.

Saturday, May 2

The Griffin Equivalency

Season 2 • Episode 4

Raj gets an inflated ego and makes a play for Penny after being referenced in a magazine article.

Saturday, May 2

The Hawking Excitation

Season 5 • Episode 21

When Wolowitz works with Stephen Hawking, Sheldon is determined to meet the famous scientist.

Saturday, May 2

The Hot Tub Contamination

Season 10 • Episode 5

Things do not run smoothly when Amy moves in with Sheldon, and Leonard and Penny have to intervene.

Saturday, May 2

The Fetal Kick Catalyst

Season 10 • Episode 6

At a Comic Con event, Penny learns there are fans of her performance in "Serial Ape-ist."

Saturday, May 2

The Veracity Elasticity

Season 10 • Episode 7

Amy lies about repairs being made to her apartment so she can continue living with Sheldon.

Saturday, May 2

The Brain Bowl Incubation

Season 10 • Episode 8

After a successful gene experiment, Sheldon is determined to convince Amy they should procreate.

Saturday, May 2

The Geology Elevation

Season 10 • Episode 9

Sheldon gets jealous when a co-worker wins an award; Wolowitz finds an old invention.

Saturday, May 2

The Fortification Implementation

Season 8 • Episode 20

Sheldon and Amy build a blanket fort; Wolowitz meets a half-brother he didn't know he had.

Saturday, May 2

The Property Division Collision

Season 10 • Episode 10

Sheldon and Leonard divvy up their shared belongings.

Saturday, May 2

The Communication Deterioration

Season 8 • Episode 21

The guys fight over a message that could be used for alien contact.

Saturday, May 2

The Birthday Synchronicity

Season 10 • Episode 11

Bernadette and Howard welcome their baby; Amy celebrates her birthday with Sheldon.

Saturday, May 2

The Graduation Transmission

Season 8 • Episode 22

Wolowitz questions his engineering skills; a canceled flight puts Leonard's plans in jeopardy.

Saturday, May 2

The Holiday Summation

Season 10 • Episode 12

Sheldon and Amy visit Penny and Leonard and tell them about their terrible trip to Texas.

Saturday, May 2

The Maternal Combustion

Season 8 • Episode 23

When Sheldon's and Leonard's mothers finally meet, personalities collide.

Sunday, May 3

The Commitment Determination

Season 8 • Episode 24

While facing relationship changes, Sheldon pushes Penny and Leonard to choose a wedding date.

Sunday, May 3

The Cooper-Nowitzki Theorem

Season 2 • Episode 6

Sheldon and the gang are confused when a young grad student is attracted to him.

Sunday, May 3

The Panty Piñata Polarization

Season 2 • Episode 7

Sheldon bans Penny from the apartment for a series of petty infractions; she vows to get revenge.

Sunday, May 3

The Lizard-Spock Expansion

Season 2 • Episode 8

Leonard inadvertently steals away the new woman Wolowitz thinks is the love of his life.

Sunday, May 3

The White Asparagus Triangulation

Season 2 • Episode 9

Sheldon is thrilled when Leonard starts dating a woman who meets Sheldon's stringent standards.

Sunday, May 3

The Vartabedian Conundrum

Season 2 • Episode 10

Leonard asks Penny for advice when his new relationship starts moving too fast.

Sunday, May 3

The Bath Item Gift Hypothesis

Season 2 • Episode 11

Leonard and his friends are tortured by Sheldon's obsession with gift-giving etiquette.

Sunday, May 3

The Killer Robot Instability

Season 2 • Episode 12

The guys lose their most important teammate in an upcoming fighting-robot competition.

Sunday, May 3

The Friendship Algorithm

Season 2 • Episode 13

Sheldon develops a scientific procedure for making friends; Kripke controls a new supercomputer.

Sunday, May 3

The Romance Recalibration

Season 10 • Episode 13

Penny and Amy go on a spa weekend; Wolowitz and Koothrappali try to fix a squeaky floorboard.

Sunday, May 3

The Emotion Detection Automation

Season 10 • Episode 14

Sheldon tests an MIT invention after hearing it can help him read people's emotions.

Sunday, May 3

The Locomotion Reverberation

Season 10 • Episode 15

Leonard and Wolowitz try to distract Sheldon when he slows the progress of their guidance system.

Sunday, May 3

The Allowance Evaporation

Season 10 • Episode 16

Sheldon and Amy have a fight; Koothrappali stops receiving financial support from his father.

Sunday, May 3

The Comic-Con Conundrum

Season 10 • Episode 17

Koothrappali asks Sheldon to help him get out of debt; Penny considers joining Leonard at Comic-Con.

Sunday, May 3

The Matrimonial Momentum

Season 9 • Episode 1

Penny must decide if she can get past Leonard's bad behavior.

Sunday, May 3

The Escape Hatch Identification

Season 10 • Episode 18

Leonard and Penny offer Sheldon's old room to Raj after he moves out of his apartment.

Sunday, May 3

The Separation Oscillation

Season 9 • Episode 2

Leonard tries to ease Penny's mind; Sheldon plans a special episode of "Fun With Flags."

Sunday, May 3

The Collaboration Fluctuation

Season 10 • Episode 19

Leonard, Penny and Raj adjust to their new arrangement; Sheldon expresses interest in Amy's work.

Sunday, May 3

The Bachelor Party Corrosion

Season 9 • Episode 3

A flat tire during Leonard's bachelor party weekend in Mexico tests the guys' skills.

Sunday, May 3

The Recollection Dissipation

Season 10 • Episode 20

Sheldon collaborates on too many projects; Bernadette nears the end of her maternity leave.

Sunday, May 3

The 2003 Approximation

Season 9 • Episode 4

An impending change inspires Sheldon to revert to 2003, before he met Penny and Leonard.

Monday, May 4

The Perspiration Implementation

Season 9 • Episode 5

Barry Kripke expresses interest in Amy while leading a fencing lesson for the guys.

Monday, May 4

The Anxiety Optimization

Season 8 • Episode 13

Sheldon asks his friends to challenge him in hope of achieving a scientific breakthrough.

Monday, May 4

The Troll Manifestation

Season 8 • Episode 14

Sheldon and Leonard must defend themselves from an online bully's criticism after writing a paper.

Monday, May 4

The Convergence Convergence

Season 9 • Episode 24

Leonard's recently divorced parents and Sheldon's devoutly religious mother visit.

Monday, May 4

The Conjugal Conjecture

Season 10 • Episode 1

The group deals with the aftermath of Sheldon's mother and Leonard's father's evening together.

Monday, May 4

The Military Miniaturization

Season 10 • Episode 2

Wolowitz has a meeting with Colonel Williams, a representative from the Air Force.

Monday, May 4

The Dependence Transcendence

Season 10 • Episode 3

Sheldon tries an energy drink as the gang races to finish its government project on time.

Monday, May 4

The Cohabitation Experimentation

Season 10 • Episode 4

After her apartment floods, Amy suggests that she and Sheldon move in together.

Monday, May 4

The Hot Tub Contamination

Season 10 • Episode 5

Things do not run smoothly when Amy moves in with Sheldon, and Leonard and Penny have to intervene.

Monday, May 4

The Fetal Kick Catalyst

Season 10 • Episode 6

At a Comic Con event, Penny learns there are fans of her performance in "Serial Ape-ist."

Monday, May 4

The Veracity Elasticity

Season 10 • Episode 7

Amy lies about repairs being made to her apartment so she can continue living with Sheldon.

Monday, May 4

The Relaxation Integration

Season 11 • Episode 3

As Sheldon stresses about picking a wedding date, Amy tells him he can be more easygoing.

Monday, May 4

The Vegas Renormalization

Season 2 • Episode 21

Koothrappali and Leonard take Wolowitz to Las Vegas; Sheldon gets locked out of his apartment.

Monday, May 4

The Collaboration Contamination

Season 11 • Episode 5

Penny and Leonard learn a secret from an unlikely source about dealing with Sheldon.

Monday, May 4

The Proton Regeneration

Season 11 • Episode 6

Sheldon auditions for the role of the new Professor Proton; Penny takes care of Halley.

Monday, May 4

The Tesla Recoil

Season 11 • Episode 8

Leonard and Wolowitz are furious to learn Sheldon worked with the military behind their backs.

Monday, May 4

The Bitcoin Entanglement

Season 11 • Episode 9

Sheldon tries to teach the guys a lesson after being cut out of a potentially valuable investment.

Monday, May 4

The Helium Insufficiency

Season 9 • Episode 6

Leonard and Sheldon try to secure the helium they need during a nation-wide shortage.

Monday, May 4

The Spock Resonance

Season 9 • Episode 7

Sheldon struggles to keep his emotions in check when he is interviewed for a documentary.

Tuesday, May 5

The Mystery Date Observation

Season 9 • Episode 8

Sheldon, Wolowitz and Koothrappali post an ad online to find a new girlfriend for Sheldon.

Tuesday, May 5

The Parking Spot Escalation

Season 6 • Episode 9

Sheldon and Wolowitz's fight over a parking spot at the university impacts the whole gang.

Tuesday, May 5

The Confidence Erosion

Season 11 • Episode 10

Sheldon and Amy try to use math to eliminate wedding planning stress.

Tuesday, May 5

The Celebration Reverberation

Season 11 • Episode 11

Sheldon plans a dinner for Amy's birthday; Leonard receives a Christmas letter from his brother.

Tuesday, May 5

The Matrimonial Metric

Season 11 • Episode 12

Sheldon and Amy subject their friends to experiments; Penny reveals her feelings about Amy.

Tuesday, May 5

The Solo Oscillation

Season 11 • Episode 13

Sheldon kicks Amy out to work solo; Amy and Leonard bond during a series of science experiments.

Tuesday, May 5

The Separation Triangulation

Season 11 • Episode 14

Koothrappali learns the woman he's dating has a very upset husband; Sheldon rents his old room.

Tuesday, May 5

The Novelization Correlation

Season 11 • Episode 15

Sheldon petitions Wil Wheaton to appear on his show, but Wil offers a role to Amy instead.

Tuesday, May 5

The Neonatal Nomenclature

Season 11 • Episode 16

When Bernadette won't go into labor, her friends try different tactics to get things started.

Tuesday, May 5

The Classified Materials Turbulence

Season 2 • Episode 22

Penny makes a surprising revelation about Leonard while on her date with Stuart.

Tuesday, May 5

The Maternal Congruence

Season 3 • Episode 11

Leonard is horrified when his mother (Christine Baranski) visits.

Tuesday, May 5

The Rhinitis Revelation

Season 5 • Episode 6

Sheldon finds himself competing with the gang for his mother's attention when she visits.

Tuesday, May 5

The Platonic Permutation

Season 9 • Episode 9

Amy and Sheldon spend Thanksgiving at the aquarium -- as friends.

Tuesday, May 5

The Earworm Reverberation

Season 9 • Episode 10

Sheldon has a song stuck in his head; despite their awkward date, Amy asks Dave over for dinner.

Wednesday, May 6

The Opening Night Excitation

Season 9 • Episode 11

After dating for more than five years, Amy and Sheldon spend the night together for the first time.

Wednesday, May 6

The Fish Guts Displacement

Season 6 • Episode 10

When Amy gets sick, Sheldon tries to nurse her back to health.

Wednesday, May 6

The Brain Bowl Incubation

Season 10 • Episode 8

After a successful gene experiment, Sheldon is determined to convince Amy they should procreate.

Wednesday, May 6

The Geology Elevation

Season 10 • Episode 9

Sheldon gets jealous when a co-worker wins an award; Wolowitz finds an old invention.

Wednesday, May 6

The Property Division Collision

Season 10 • Episode 10

Sheldon and Leonard divvy up their shared belongings.

Wednesday, May 6

The Birthday Synchronicity

Season 10 • Episode 11

Bernadette and Howard welcome their baby; Amy celebrates her birthday with Sheldon.

Wednesday, May 6

The Holiday Summation

Season 10 • Episode 12

Sheldon and Amy visit Penny and Leonard and tell them about their terrible trip to Texas.

Wednesday, May 6

The Romance Recalibration

Season 10 • Episode 13

Penny and Amy go on a spa weekend; Wolowitz and Koothrappali try to fix a squeaky floorboard.

Wednesday, May 6

The Emotion Detection Automation

Season 10 • Episode 14

Sheldon tests an MIT invention after hearing it can help him read people's emotions.

Wednesday, May 6

The Locomotion Reverberation

Season 10 • Episode 15

Leonard and Wolowitz try to distract Sheldon when he slows the progress of their guidance system.

Wednesday, May 6

The Sibling Realignment

Season 11 • Episode 23

Sheldon's mother won't attend his wedding unless he invites his brother.

Wednesday, May 6

The Monopolar Expedition

Season 2 • Episode 23

Leonard and Penny re-evaluate their feelings for each other when he prepares for a three-month trip.

Wednesday, May 6

The Mommy Observation

Season 7 • Episode 18

Sheldon is faced with a new reality when he visits his mom in Houston.

Wednesday, May 6

The Maternal Combustion

Season 8 • Episode 23

When Sheldon's and Leonard's mothers finally meet, personalities collide.

Wednesday, May 6

The Sales Call Sublimination

Season 9 • Episode 12

Leonard meets with a psychiatrist; Wolowitz and Bernadette struggle when Stuart moves out.

Wednesday, May 6

The Empathy Optimization

Season 9 • Episode 13

Leonard, Penny and the gang attempt to treat themselves to a Sheldon-free weekend.

Thursday, May 7

The Meemaw Materialization

Season 9 • Episode 14

Sheldon's excitement about his Meemaw's visit fades when she butts heads with Amy.

Thursday, May 7

The Santa Simulation

Season 6 • Episode 11

During a game, Sheldon revisits Christmas memories; finding a date for Koothrappali.

Thursday, May 7

The Conjugal Configuration

Season 12 • Episode 1

Penny and Leonard discover they are uncomfortably similar to Amy's parents.

Thursday, May 7

The Wedding Gift Wormhole

Season 12 • Episode 2

Sheldon and Amy go crazy trying to figure out what Leonard and Penny gave them for their wedding.

Thursday, May 7

The Procreation Calculation

Season 12 • Episode 3

Stuart starts bringing his new girlfriend home; Koothrappali explores an arranged marriage.

Thursday, May 7

The Tam Turbulence

Season 12 • Episode 4

Sheldon won't tell anyone why he's never mentioned Tam, his childhood best friend.

Thursday, May 7

The Planetarium Collision

Season 12 • Episode 5

When Amy doesn't have time to work on super-asymmetry, Sheldon schemes to ensure she's available.

Thursday, May 7

The Imitation Perturbation

Season 12 • Episode 6

Sheldon seeks retaliation when Wolowitz dresses up as Sheldon for Halloween.

Thursday, May 7

The Grant Allocation Derivation

Season 12 • Episode 7

Leonard struggles when he's given the responsibility of distributing extra grant money.

Thursday, May 7

The Electric Can Opener Fluctuation

Season 3 • Episode 1

A betrayal threatens the guys' relationship with Sheldon as well as Leonard's chances with Penny.

Thursday, May 7

The Citation Negation

Season 12 • Episode 9

Sheldon and Amy are devastated after learning that Super Asymmetry has already been disproved.

Thursday, May 7

The VCR Illumination

Season 12 • Episode 10

A VHS tape from Sheldon's past inspires him not to give up; Bernadette tries to help Wolowitz.

Thursday, May 7

The Paintball Scattering

Season 12 • Episode 11

Penny and Leonard organize a paintball game, which results in mayhem due to Sheldon's jealousy.

Thursday, May 7

The Propagation Proposition

Season 12 • Episode 12

Penny's ex-boyfriend Zack learns that he is infertile, so he asks Leonard for help.

Thursday, May 7

The Confirmation Polarization

Season 12 • Episode 13

A rival team of physicists tries to take credit for Amy and Sheldon's super asymmetry theory.

Thursday, May 7

The Meteorite Manifestation

Season 12 • Episode 14

Leonard is disappointed when his friends exclude him from a scientific project.

Thursday, May 7

The Valentino Submergence

Season 9 • Episode 15

Amy and Sheldon host a Valentine's Day edition of Fun With Flags; Raj is torn between two women.

Thursday, May 7

The Positive Negative Reaction

Season 9 • Episode 16

The gang celebrates news of Bernadette's pregnancy by singing karaoke.

Friday, May 8

The Big Bear Precipitation

Season 9 • Episode 20

Sheldon shares a secret about Leonard when they go on a weekend trip with Penny and Amy.

Friday, May 8

The Egg Salad Equivalency

Season 6 • Episode 12

Sheldon is accused of sexual harassment and winds up getting Raj, Leonard and Wolowitz in trouble.

Friday, May 8

The Allowance Evaporation

Season 10 • Episode 16

Sheldon and Amy have a fight; Koothrappali stops receiving financial support from his father.

Friday, May 8

The Comic-Con Conundrum

Season 10 • Episode 17

Koothrappali asks Sheldon to help him get out of debt; Penny considers joining Leonard at Comic-Con.

Friday, May 8

The Escape Hatch Identification

Season 10 • Episode 18

Leonard and Penny offer Sheldon's old room to Raj after he moves out of his apartment.

Friday, May 8

The Collaboration Fluctuation

Season 10 • Episode 19

Leonard, Penny and Raj adjust to their new arrangement; Sheldon expresses interest in Amy's work.

Friday, May 8

The Recollection Dissipation

Season 10 • Episode 20

Sheldon collaborates on too many projects; Bernadette nears the end of her maternity leave.

Friday, May 8

The Separation Agitation

Season 10 • Episode 21

Howard and Bernadette struggle to leave Halley in day care; Bert introduces his new girlfriend.

Friday, May 8

The Cognition Regeneration

Season 10 • Episode 22

Leonard has concerns when Penny considers accepting a job offer from Zack, her ex-boyfriend.

Friday, May 8

The Gyroscopic Collapse

Season 10 • Episode 23

Leonard, Sheldon and Wolowitz get an unwelcome surprise after completing the Air Force project.

Friday, May 8

The Plagiarism Schism

Season 12 • Episode 21

Kripke has proof that Dr. Pemberton plagiarized his thesis in college.

Friday, May 8

The Jiminy Conjecture

Season 3 • Episode 2

Penny and Leonard try to recover from an awkward hookup; Howard and Sheldon make a high-stakes bet.

Friday, May 8

The Bow Tie Asymmetry

Season 11 • Episode 24

Amy's parents and Sheldon's family arrive; nearly everybody is focused on the wedding plans.

Friday, May 8

The Maternal Conclusion

Season 12 • Episode 22

Leonard is pleasantly surprised when Beverly comes to visit, and she's genuinely kind to him.

Friday, May 8

The Celebration Experimentation

Season 9 • Episode 17

For the first time in nine years, the gang celebrates Sheldon's birthday.

Friday, May 8

The Application Deterioration

Season 9 • Episode 18

The guys file for a patent on their invention; the girls give dating advice to Koothrappali.

Saturday, May 9

The Solder Excursion Diversion

Season 9 • Episode 19

Sheldon makes a revelation when Amy buys him a new laptop; Leonard and Wolowitz lie to their wives.

Saturday, May 9

The Financial Permeability

Season 2 • Episode 14

Sheldon's solution to Penny's financial difficulty leads to a confrontation.

Saturday, May 9

The Maternal Capacitance

Season 2 • Episode 15

Leonard and Penny are drawn together after a disastrous visit from Leonard's mother.

Saturday, May 9

The Cushion Saturation

Season 2 • Episode 16

A paintball game leads to a fight between Sheldon and Penny, and romance for Leslie and Wolowitz.

Saturday, May 9

The Terminator Decoupling

Season 2 • Episode 17

Leonard, Sheldon and Wolowitz are ecstatic to learn that a sci-fi actress is aboard their train.

Saturday, May 9

The Work Song Nanocluster

Season 2 • Episode 18

Penny's home business turns into a complete nightmare when Sheldon takes over.

Saturday, May 9

The Dead Hooker Juxtaposition

Season 2 • Episode 19

Penny has a rivalry with a new neighbor who threatens her position as queen bee of the building.

Saturday, May 9

The Hofstadter Isotope

Season 2 • Episode 20

Wolowitz and Leonard decide to check out a local bar on Ladies' Night.

Saturday, May 9

The Vegas Renormalization

Season 2 • Episode 21

Koothrappali and Leonard take Wolowitz to Las Vegas; Sheldon gets locked out of his apartment.

Saturday, May 9

The Classified Materials Turbulence

Season 2 • Episode 22

Penny makes a surprising revelation about Leonard while on her date with Stuart.

Saturday, May 9

Pilot

Season 1 • Episode 1

Leonard likes new neighbor Penny, but his roommate thinks he is chasing an impossible dream.

Saturday, May 9

The Big Bran Hypothesis

Season 1 • Episode 2

Leonard volunteers to sign for a package, hoping to make a good impression on Penny.

Saturday, May 9

The Viewing Party Combustion

Season 9 • Episode 21

The gang must choose sides when an argument between Sheldon and Leonard turns into a heated debate.

Saturday, May 9

The Fermentation Bifurcation

Season 9 • Episode 22

The gang runs into Penny's ex while out at a wine bar; Bernadette spends an evening with Sheldon.

Saturday, May 9

The Line Substitution Solution

Season 9 • Episode 23

Sheldon wants to go to a movie screening, so he pays Stuart to spend the day with Amy.

Saturday, May 9

The Convergence Convergence

Season 9 • Episode 24

Leonard's recently divorced parents and Sheldon's devoutly religious mother visit.

Sunday, May 10

The Conjugal Conjecture

Season 10 • Episode 1

The group deals with the aftermath of Sheldon's mother and Leonard's father's evening together.

Sunday, May 10

The Monopolar Expedition

Season 2 • Episode 23

Leonard and Penny re-evaluate their feelings for each other when he prepares for a three-month trip.

Sunday, May 10

The Electric Can Opener Fluctuation

Season 3 • Episode 1

A betrayal threatens the guys' relationship with Sheldon as well as Leonard's chances with Penny.

Sunday, May 10

The Jiminy Conjecture

Season 3 • Episode 2

Penny and Leonard try to recover from an awkward hookup; Howard and Sheldon make a high-stakes bet.

Sunday, May 10

The Gothowitz Deviation

Season 3 • Episode 3

Sheldon tries chocolate-based behavior modification on Penny; Howard and Raj hit a Goth nightclub.

Sunday, May 10

The Pirate Solution

Season 3 • Episode 4

Raj faces deportation if he doesn't find a job; Leonard and Penny deal with Howard as a third wheel.

Sunday, May 10

The Creepy Candy Coating Corollary

Season 3 • Episode 5

Sheldon seeks revenge on his nemesis; Wolowitz wants Penny to set him up with one of her friends.

Sunday, May 10

The Cornhusker Vortex

Season 3 • Episode 6

Sheldon teaches Leonard about football; kite-fighting threatens Howard and Raj's friendship.

Sunday, May 10

The Guitarist Amplification

Season 3 • Episode 7

Sheldon tries to make peace when Leonard and Penny get into an argument.

Sunday, May 10

The Adhesive Duck Deficiency

Season 3 • Episode 8

Penny is forced to rely on Sheldon when she is injured while Howard, Leonard and Raj are away.

Sunday, May 10

The Fuzzy Boots Corollary

Season 1 • Episode 3

Unhappy that Penny is seeing someone, Leonard summons the courage to ask another woman out.

Sunday, May 10

The Luminous Fish Effect

Season 1 • Episode 4

Getting fired gives Sheldon the opportunity to explore life beyond physics.

Sunday, May 10

The Hamburger Postulate

Season 1 • Episode 5

Leonard, trying to get over Penny, has an unexpected encounter with a fellow scientist.

Sunday, May 10

The Middle Earth Paradigm

Season 1 • Episode 6

Leonard, Sheldon, Wolowitz and Koothrappali attend Penny's Halloween party.

Sunday, May 10

The Dumpling Paradox

Season 1 • Episode 7

Penny sleeps on Leonard and Sheldon's couch when Wolowitz takes over her apartment.

Sunday, May 10

The Military Miniaturization

Season 10 • Episode 2

Wolowitz has a meeting with Colonel Williams, a representative from the Air Force.

Sunday, May 10

The Grasshopper Experiment

Season 1 • Episode 8

On a blind date, Koothrappali discovers that he can talk to the opposite sex after a few drinks.

Sunday, May 10

The Dependence Transcendence

Season 10 • Episode 3

Sheldon tries an energy drink as the gang races to finish its government project on time.

Sunday, May 10

The Cooper-Hofstadter Polarization

Season 1 • Episode 9

Penny tries to mediate when Sheldon and Leonard disagree about a physics conference.

Sunday, May 10

The Cohabitation Experimentation

Season 10 • Episode 4

After her apartment floods, Amy suggests that she and Sheldon move in together.

Sunday, May 10

The Loobenfeld Decay

Season 1 • Episode 10

Leonard and Sheldon try to avoid seeing Penny perform after hearing her sing.

Sunday, May 10

The Hot Tub Contamination

Season 10 • Episode 5

Things do not run smoothly when Amy moves in with Sheldon, and Leonard and Penny have to intervene.

Monday, May 11

The Fetal Kick Catalyst

Season 10 • Episode 6

At a Comic Con event, Penny learns there are fans of her performance in "Serial Ape-ist."

Monday, May 11

The Comic Book Store Regeneration

Season 8 • Episode 15

The gang waits for the reopening of the comic book store; Wolowitz gets some shocking news.

Monday, May 11

The Intimacy Acceleration

Season 8 • Episode 16

Penny and Sheldon design an experiment -- as a joke -- to make participants fall in love.

Monday, May 11

A free-spirited beauty moves in next door to two physicists.

Monday, May 11

A free-spirited beauty moves in next door to two physicists.

Monday, May 11

A free-spirited beauty moves in next door to two physicists.

Monday, May 11

A free-spirited beauty moves in next door to two physicists.

Monday, May 11

A free-spirited beauty moves in next door to two physicists.

Monday, May 11

A free-spirited beauty moves in next door to two physicists.

Monday, May 11

A free-spirited beauty moves in next door to two physicists.

Monday, May 11

The Tangerine Factor

Season 1 • Episode 17

Leonard finally works up the courage to ask Penny out on a date, and both ask Sheldon for advice.

Monday, May 11

The Gothowitz Deviation

Season 3 • Episode 3

Sheldon tries chocolate-based behavior modification on Penny; Howard and Raj hit a Goth nightclub.

Monday, May 11

The Codpiece Topology

Season 2 • Episode 2

Leonard rushes into a rebound relationship with Sheldon's nemesis.

Monday, May 11

The Barbarian Sublimation

Season 2 • Episode 3

Sheldon creates a monster when he introduces Penny to online gaming.

Monday, May 11

The Euclid Alternative

Season 2 • Episode 5

Leonard and his friends stage an intervention to force Sheldon to face his fear of driving.

Monday, May 11

The Cooper-Nowitzki Theorem

Season 2 • Episode 6

Sheldon and the gang are confused when a young grad student is attracted to him.

Monday, May 11

The Veracity Elasticity

Season 10 • Episode 7

Amy lies about repairs being made to her apartment so she can continue living with Sheldon.

Monday, May 11

The Brain Bowl Incubation

Season 10 • Episode 8

After a successful gene experiment, Sheldon is determined to convince Amy they should procreate.

Tuesday, May 12

The Geology Elevation

Season 10 • Episode 9

Sheldon gets jealous when a co-worker wins an award; Wolowitz finds an old invention.

Tuesday, May 12

The Cooper/Kripke Inversion

Season 6 • Episode 14

Sheldon faces a crisis of confidence when he is forced to work with his nemesis, Barry Kripke.

Tuesday, May 12

The Panty Piñata Polarization

Season 2 • Episode 7

Sheldon bans Penny from the apartment for a series of petty infractions; she vows to get revenge.

Tuesday, May 12

The Lizard-Spock Expansion

Season 2 • Episode 8

Leonard inadvertently steals away the new woman Wolowitz thinks is the love of his life.

Tuesday, May 12

The White Asparagus Triangulation

Season 2 • Episode 9

Sheldon is thrilled when Leonard starts dating a woman who meets Sheldon's stringent standards.

Tuesday, May 12

The Vartabedian Conundrum

Season 2 • Episode 10

Leonard asks Penny for advice when his new relationship starts moving too fast.

Tuesday, May 12

The Bath Item Gift Hypothesis

Season 2 • Episode 11

Leonard and his friends are tortured by Sheldon's obsession with gift-giving etiquette.

Tuesday, May 12

The Pirate Solution

Season 3 • Episode 4

Raj faces deportation if he doesn't find a job; Leonard and Penny deal with Howard as a third wheel.

Tuesday, May 12

The Cooper Extraction

Season 7 • Episode 11

While Sheldon is in Texas, the rest of the gang realize how much he has changed their lives.

Tuesday, May 12

The Holiday Summation

Season 10 • Episode 12

Sheldon and Amy visit Penny and Leonard and tell them about their terrible trip to Texas.

Tuesday, May 12

The Property Division Collision

Season 10 • Episode 10

Sheldon and Leonard divvy up their shared belongings.

Tuesday, May 12

The Birthday Synchronicity

Season 10 • Episode 11

Bernadette and Howard welcome their baby; Amy celebrates her birthday with Sheldon.

Wednesday, May 13

The Romance Recalibration

Season 10 • Episode 13

Penny and Amy go on a spa weekend; Wolowitz and Koothrappali try to fix a squeaky floorboard.

Wednesday, May 13

The Spoiler Alert Segmentation

Season 6 • Episode 15

A fight between Sheldon and Leonard impacts Amy and Penny's living arrangements.

Wednesday, May 13

A free-spirited beauty moves in next door to two physicists.

Wednesday, May 13

A free-spirited beauty moves in next door to two physicists.

Wednesday, May 13

A free-spirited beauty moves in next door to two physicists.

Wednesday, May 13

A free-spirited beauty moves in next door to two physicists.

Wednesday, May 13

A free-spirited beauty moves in next door to two physicists.

Wednesday, May 13

A free-spirited beauty moves in next door to two physicists.

Wednesday, May 13

The Work Song Nanocluster

Season 2 • Episode 18

Penny's home business turns into a complete nightmare when Sheldon takes over.

Wednesday, May 13

The Creepy Candy Coating Corollary

Season 3 • Episode 5

Sheldon seeks revenge on his nemesis; Wolowitz wants Penny to set him up with one of her friends.

Wednesday, May 13

The Friendship Turbulence

Season 7 • Episode 17

Bernadette tries to negotiate peace between Sheldon and Wolowitz.

Wednesday, May 13

The Mommy Observation

Season 7 • Episode 18

Sheldon is faced with a new reality when he visits his mom in Houston.

Wednesday, May 13

The Emotion Detection Automation

Season 10 • Episode 14

Sheldon tests an MIT invention after hearing it can help him read people's emotions.

Wednesday, May 13

The Locomotion Reverberation

Season 10 • Episode 15

Leonard and Wolowitz try to distract Sheldon when he slows the progress of their guidance system.

Thursday, May 14

The Allowance Evaporation

Season 10 • Episode 16

Sheldon and Amy have a fight; Koothrappali stops receiving financial support from his father.

Thursday, May 14

The Tangible Affection Proof

Season 6 • Episode 16

The guys search for Valentine's Day gifts; Stuart and Raj host a "lonely people" party.

Thursday, May 14

A free-spirited beauty moves in next door to two physicists.

Thursday, May 14

A free-spirited beauty moves in next door to two physicists.

Thursday, May 14

A free-spirited beauty moves in next door to two physicists.

Thursday, May 14

A free-spirited beauty moves in next door to two physicists.

Thursday, May 14

A free-spirited beauty moves in next door to two physicists.

Thursday, May 14

A free-spirited beauty moves in next door to two physicists.

Thursday, May 14

The Gothowitz Deviation

Season 3 • Episode 3

Sheldon tries chocolate-based behavior modification on Penny; Howard and Raj hit a Goth nightclub.

Thursday, May 14

The Cornhusker Vortex

Season 3 • Episode 6

Sheldon teaches Leonard about football; kite-fighting threatens Howard and Raj's friendship.

Thursday, May 14

The Cornhusker Vortex

Season 3 • Episode 6

Sheldon teaches Leonard about football; kite-fighting threatens Howard and Raj's friendship.

Thursday, May 14

The Guitarist Amplification

Season 3 • Episode 7

Sheldon tries to make peace when Leonard and Penny get into an argument.

Thursday, May 14

The Adhesive Duck Deficiency

Season 3 • Episode 8

Penny is forced to rely on Sheldon when she is injured while Howard, Leonard and Raj are away.

Thursday, May 14

The Vengeance Formulation

Season 3 • Episode 9

After being humiliated on the radio, Sheldon vows to destroy Kripke.

Thursday, May 14

The Gorilla Experiment

Season 3 • Episode 10

Sheldon tries to help Penny understand Leonard's work; Wolowitz gets jealous.

Thursday, May 14

The Maternal Congruence

Season 3 • Episode 11

Leonard is horrified when his mother (Christine Baranski) visits.

Thursday, May 14

The Escape Hatch Identification

Season 10 • Episode 18

Leonard and Penny offer Sheldon's old room to Raj after he moves out of his apartment.

Thursday, May 14

The Collaboration Fluctuation

Season 10 • Episode 19

Leonard, Penny and Raj adjust to their new arrangement; Sheldon expresses interest in Amy's work.

Friday, May 15

The Recollection Dissipation

Season 10 • Episode 20

Sheldon collaborates on too many projects; Bernadette nears the end of her maternity leave.

Friday, May 15

The Monster Isolation

Season 6 • Episode 17

Koothrappali decides to never leave his apartment; Penny's acting skills impress Sheldon.

Friday, May 15

A free-spirited beauty moves in next door to two physicists.

Friday, May 15

A free-spirited beauty moves in next door to two physicists.

Friday, May 15

A free-spirited beauty moves in next door to two physicists.

Friday, May 15

A free-spirited beauty moves in next door to two physicists.

Friday, May 15

A free-spirited beauty moves in next door to two physicists.

Friday, May 15

A free-spirited beauty moves in next door to two physicists.

Friday, May 15

A free-spirited beauty moves in next door to two physicists.

Friday, May 15

The Precious Fragmentation

Season 3 • Episode 17

A ring from "The Lord of the Rings" at a garage sale threatens to tear the guys apart.

Friday, May 15

The Guitarist Amplification

Season 3 • Episode 7

Sheldon tries to make peace when Leonard and Penny get into an argument.

Friday, May 15

The Wheaton Recurrence

Season 3 • Episode 19

Penny and Leonard have a fight that threatens their relationship; Sheldon and Wil Wheaton face off.

Friday, May 15

The Spaghetti Catalyst

Season 3 • Episode 20

Sheldon goes to extremes to keep Leonard and Penny happy when they stop speaking to each other.

Friday, May 15

The Plimpton Stimulation

Season 3 • Episode 21

Sheldon invites a famous physicist to the apartment, and competes with Leonard for her attention.

Friday, May 15

The Sibling Realignment

Season 11 • Episode 23

Sheldon's mother won't attend his wedding unless he invites his brother.

Friday, May 15

The Separation Agitation

Season 10 • Episode 21

Howard and Bernadette struggle to leave Halley in day care; Bert introduces his new girlfriend.

Friday, May 15

The Cognition Regeneration

Season 10 • Episode 22

Leonard has concerns when Penny considers accepting a job offer from Zack, her ex-boyfriend.

Friday, May 15

The Gyroscopic Collapse

Season 10 • Episode 23

Leonard, Sheldon and Wolowitz get an unwelcome surprise after completing the Air Force project.

Saturday, May 16

The Long Distance Dissonance

Season 10 • Episode 24

Sheldon's former admirer, Dr. Ramona Nowitzki, resurfaces while Amy is away at Princeton.

Saturday, May 16

The Contractual Obligation Implementation

Season 6 • Episode 18

Leonard, Sheldon and Wolowitz talk to junior high girls about science-related careers.

Saturday, May 16

A free-spirited beauty moves in next door to two physicists.

Saturday, May 16

A free-spirited beauty moves in next door to two physicists.

Saturday, May 16

A free-spirited beauty moves in next door to two physicists.

Saturday, May 16

A free-spirited beauty moves in next door to two physicists.

Saturday, May 16

A free-spirited beauty moves in next door to two physicists.

Saturday, May 16

A free-spirited beauty moves in next door to two physicists.

Saturday, May 16

A free-spirited beauty moves in next door to two physicists.

Saturday, May 16

A free-spirited beauty moves in next door to two physicists.

Saturday, May 16

The Staircase Implementation

Season 3 • Episode 22

Leonard tells Penny about how he met Sheldon and what happened to the elevator.

Saturday, May 16

The Lunar Excitation

Season 3 • Episode 23

Raj and Howard set up an online dating profile for Sheldon and find the perfect woman.

Saturday, May 16

The Robotic Manipulation

Season 4 • Episode 1

Penny tags along on Sheldon's first date; Wolowitz finds a new use for a robotic arm.

Saturday, May 16

The Cruciferous Vegetable Amplification

Season 4 • Episode 2

Sheldon realizes he will not live long enough to download his consciousness into a robot body.

Saturday, May 16

The Zazzy Substitution

Season 4 • Episode 3

When Sheldon searches for an alternative to human companionship, the guys become concerned.

Saturday, May 16

The Hot Troll Deviation

Season 4 • Episode 4

An embarrassing secret of Wolowitz's is revealed; Raj and Sheldon get into a war at work.

Saturday, May 16

The Desperation Emanation

Season 4 • Episode 5

Leonard realizes he is the only one in his group without a girlfriend.

Saturday, May 16

The Proposal Proposal

Season 11 • Episode 1

Amy answers Sheldon's marriage proposal; Howard and Bernadette struggle with unexpected news.

Saturday, May 16

The Retraction Reaction

Season 11 • Episode 2

Leonard's job is at stake after he gives an embarrassing radio interview; Amy and Bernadette bond.

Sunday, May 17

The Relaxation Integration

Season 11 • Episode 3

As Sheldon stresses about picking a wedding date, Amy tells him he can be more easygoing.

Sunday, May 17

A free-spirited beauty moves in next door to two physicists.

Sunday, May 17

A free-spirited beauty moves in next door to two physicists.

Sunday, May 17

A free-spirited beauty moves in next door to two physicists.

Sunday, May 17

A free-spirited beauty moves in next door to two physicists.

Sunday, May 17

A free-spirited beauty moves in next door to two physicists.

Sunday, May 17

A free-spirited beauty moves in next door to two physicists.

Sunday, May 17

A free-spirited beauty moves in next door to two physicists.

Sunday, May 17

A free-spirited beauty moves in next door to two physicists.