The Big Bang Theory
Cast & Crew
Johnny Galecki Leonard Hofstadter
Jim Parsons Sheldon Cooper
Kaley Cuoco Penny
Simon Helberg Howard Wolowitz
Kunal Nayyar Raj Koothrappali
Mayim Bialik Amy Farrah Fowler
Melissa Rauch Bernadette Rostenkowski
Chuck Lorre Executive Producer
Bill Prady Executive Producer
Steven Molaro Executive Producer
Mark Cendrowski Director
Anthony Rich Director
Kristy Cecil Producer
⨁Full Cast & Crew
Upcoming TV Airings
The airings below are based on a generic national schedule. Times and dates can vary by TV provider.
Tuesday, March 17
The Celebration Experimentation
Season 9 • Episode 17
For the first time in nine years, the gang celebrates Sheldon's birthday.
Tuesday, March 17
The Application Deterioration
Season 9 • Episode 18
The guys file for a patent on their invention; the girls give dating advice to Koothrappali.
Tuesday, March 17
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.
Tuesday, March 17
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.
Tuesday, March 17
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.
Tuesday, March 17
The Collaboration Fluctuation
Season 10 • Episode 19
Leonard, Penny and Raj adjust to their new arrangement; Sheldon expresses interest in Amy's work.
Tuesday, March 17
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.
Tuesday, March 17
The Recollection Dissipation
Season 10 • Episode 20
Sheldon collaborates on too many projects; Bernadette nears the end of her maternity leave.
Tuesday, March 17
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.
Tuesday, March 17
The Separation Agitation
Season 10 • Episode 21
Howard and Bernadette struggle to leave Halley in day care; Bert introduces his new girlfriend.
Tuesday, March 17
The Convergence Convergence
Season 9 • Episode 24
Leonard's recently divorced parents and Sheldon's devoutly religious mother visit.
Tuesday, March 17
The Cognition Regeneration
Season 10 • Episode 22
Leonard has concerns when Penny considers accepting a job offer from Zack, her ex-boyfriend.
Wednesday, March 18
The Gyroscopic Collapse
Season 10 • Episode 23
Leonard, Sheldon and Wolowitz get an unwelcome surprise after completing the Air Force project.
Wednesday, March 18
The Herb Garden Germination
Season 4 • Episode 20
Howard decides to take a big step in his relationship with Bernadette.
Wednesday, March 18
The Maternal Capacitance
Season 2 • Episode 15
Leonard and Penny are drawn together after a disastrous visit from Leonard's mother.
Wednesday, March 18
The Cushion Saturation
Season 2 • Episode 16
A paintball game leads to a fight between Sheldon and Penny, and romance for Leslie and Wolowitz.
Wednesday, March 18
The Terminator Decoupling
Season 2 • Episode 17
Leonard, Sheldon and Wolowitz are ecstatic to learn that a sci-fi actress is aboard their train.
Wednesday, March 18
The Work Song Nanocluster
Season 2 • Episode 18
Penny's home business turns into a complete nightmare when Sheldon takes over.
Wednesday, March 18
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.
Wednesday, March 18
The Hofstadter Isotope
Season 2 • Episode 20
Wolowitz and Leonard decide to check out a local bar on Ladies' Night.
Wednesday, March 18
The Veracity Elasticity
Season 10 • Episode 7
Amy lies about repairs being made to her apartment so she can continue living with Sheldon.
Wednesday, March 18
The Big Bran Hypothesis
Season 1 • Episode 2
Leonard volunteers to sign for a package, hoping to make a good impression on Penny.
Wednesday, March 18
The Long Distance Dissonance
Season 10 • Episode 24
Sheldon's former admirer, Dr. Ramona Nowitzki, resurfaces while Amy is away at Princeton.
Wednesday, March 18
The Proposal Proposal
Season 11 • Episode 1
Amy answers Sheldon's marriage proposal; Howard and Bernadette struggle with unexpected news.
Wednesday, March 18
The Retraction Reaction
Season 11 • Episode 2
Leonard's job is at stake after he gives an embarrassing radio interview; Amy and Bernadette bond.
Wednesday, March 18
The Relaxation Integration
Season 11 • Episode 3
As Sheldon stresses about picking a wedding date, Amy tells him he can be more easygoing.
Thursday, March 19
The Explosion Implosion
Season 11 • Episode 4
Wolowitz and Sheldon bond over having disappointing fathers; Leonard's mother befriends Penny.
Thursday, March 19
The Agreement Dissection
Season 4 • Episode 21
Priya dissects the roommate agreement; the ladies take Sheldon dancing.
Thursday, March 19
The Fuzzy Boots Corollary
Season 1 • Episode 3
Unhappy that Penny is seeing someone, Leonard summons the courage to ask another woman out.
Thursday, March 19
The Collaboration Contamination
Season 11 • Episode 5
Penny and Leonard learn a secret from an unlikely source about dealing with Sheldon.
Thursday, March 19
The Proton Regeneration
Season 11 • Episode 6
Sheldon auditions for the role of the new Professor Proton; Penny takes care of Halley.
Thursday, March 19
The Geology Methodology
Season 11 • Episode 7
Sheldon tries to keep his collaboration with Bert a secret; Penny and Bernadette coach Koothrappali.
Thursday, March 19
The Tesla Recoil
Season 11 • Episode 8
Leonard and Wolowitz are furious to learn Sheldon worked with the military behind their backs.
Friday, March 20
The Bitcoin Entanglement
Season 11 • Episode 9
Sheldon tries to teach the guys a lesson after being cut out of a potentially valuable investment.
Friday, March 20
The Wildebeest Implementation
Season 4 • Episode 22
Raj tries to cure his social anxiety; Penny spies on Leonard and his girlfriend through Bernadette.
Friday, March 20
The Vegas Renormalization
Season 2 • Episode 21
Koothrappali and Leonard take Wolowitz to Las Vegas; Sheldon gets locked out of his apartment.
Friday, March 20
The Classified Materials Turbulence
Season 2 • Episode 22
Penny makes a surprising revelation about Leonard while on her date with Stuart.
Friday, March 20
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.
Friday, March 20
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.
Friday, March 20
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, March 20
The Gothowitz Deviation
Season 3 • Episode 3
Sheldon tries chocolate-based behavior modification on Penny; Howard and Raj hit a Goth nightclub.
Friday, March 20
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.
Friday, March 20
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.
Friday, March 20
The Luminous Fish Effect
Season 1 • Episode 4
Getting fired gives Sheldon the opportunity to explore life beyond physics.
Friday, March 20
The Confidence Erosion
Season 11 • Episode 10
Sheldon and Amy try to use math to eliminate wedding planning stress.
Friday, March 20
The Matrimonial Metric
Season 11 • Episode 12
Sheldon and Amy subject their friends to experiments; Penny reveals her feelings about Amy.
Friday, March 20
The Solo Oscillation
Season 11 • Episode 13
Sheldon kicks Amy out to work solo; Amy and Leonard bond during a series of science experiments.
Friday, March 20
The Separation Triangulation
Season 11 • Episode 14
Koothrappali learns the woman he's dating has a very upset husband; Sheldon rents his old room.
Saturday, March 21
The Novelization Correlation
Season 11 • Episode 15
Sheldon petitions Wil Wheaton to appear on his show, but Wil offers a role to Amy instead.
Saturday, March 21
The Engagement Reaction
Season 4 • Episode 23
Howard's mom winds up in the hospital after hearing news of her son's engagement to Bernadette.
Saturday, March 21
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.
Saturday, March 21
The Positive Negative Reaction
Season 9 • Episode 16
The gang celebrates news of Bernadette's pregnancy by singing karaoke.
Saturday, March 21
The Celebration Experimentation
Season 9 • Episode 17
For the first time in nine years, the gang celebrates Sheldon's birthday.
Saturday, March 21
The Application Deterioration
Season 9 • Episode 18
The guys file for a patent on their invention; the girls give dating advice to Koothrappali.
Saturday, March 21
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, March 21
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.
Saturday, March 21
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, March 21
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, March 21
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, March 21
The Convergence Convergence
Season 9 • Episode 24
Leonard's recently divorced parents and Sheldon's devoutly religious mother visit.
Saturday, March 21
The Neonatal Nomenclature
Season 11 • Episode 16
When Bernadette won't go into labor, her friends try different tactics to get things started.
Saturday, March 21
The Athenaeum Allocation
Season 11 • Episode 17
Leonard jumps through hoops to help secure the perfect wedding venue for Sheldon and Amy.
Saturday, March 21
The Gates Excitation
Season 11 • Episode 18
Penny gets the opportunity to host Bill Gates at work when his company wants to partner with hers.
Saturday, March 21
The Tenant Disassociation
Season 11 • Episode 19
Leonard decides to run against Sheldon for president of the tenants' association.
Sunday, March 22
The Reclusive Potential
Season 11 • Episode 20
A brilliant but reclusive scientist invites Sheldon to his cabin in the middle of nowhere.
Sunday, March 22
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, March 22
The Military Miniaturization
Season 10 • Episode 2
Wolowitz has a meeting with Colonel Williams, a representative from the Air Force.
Sunday, March 22
The Dependence Transcendence
Season 10 • Episode 3
Sheldon tries an energy drink as the gang races to finish its government project on time.
Sunday, March 22
The Cohabitation Experimentation
Season 10 • Episode 4
After her apartment floods, Amy suggests that she and Sheldon move in together.
Sunday, March 22
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.
Sunday, March 22
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."
Sunday, March 22
The Veracity Elasticity
Season 10 • Episode 7
Amy lies about repairs being made to her apartment so she can continue living with Sheldon.
Sunday, March 22
The Brain Bowl Incubation
Season 10 • Episode 8
After a successful gene experiment, Sheldon is determined to convince Amy they should procreate.
Sunday, March 22
The Geology Elevation
Season 10 • Episode 9
Sheldon gets jealous when a co-worker wins an award; Wolowitz finds an old invention.
Sunday, March 22
The Property Division Collision
Season 10 • Episode 10
Sheldon and Leonard divvy up their shared belongings.
Sunday, March 22
The Comet Polarization
Season 11 • Episode 21
Friendships are threatened when Koothrappali takes credit for Penny's astronomical discovery.
Sunday, March 22
The Monetary Insufficiency
Season 11 • Episode 22
Sheldon tries to win money for science; Penny and Bernadette take Amy wedding dress shopping.
Sunday, March 22
The Sibling Realignment
Season 11 • Episode 23
Sheldon's mother won't attend his wedding unless he invites his brother.
Sunday, March 22
The Bow Tie Asymmetry
Season 11 • Episode 24
Amy's parents and Sheldon's family arrive; nearly everybody is focused on the wedding plans.
Monday, March 23
The Conjugal Configuration
Season 12 • Episode 1
Penny and Leonard discover they are uncomfortably similar to Amy's parents.
Monday, March 23
The Locomotion Interruption
Season 8 • Episode 1
Leonard and Amy make an unexpected trip to Arizona to fetch Sheldon; Penny goes for an interview.
Monday, March 23
The Junior Professor Solution
Season 8 • Episode 2
Amy takes advantage of the tension between Penny and Bernadette.
Monday, March 23
The Cornhusker Vortex
Season 3 • Episode 6
Sheldon teaches Leonard about football; kite-fighting threatens Howard and Raj's friendship.
Monday, March 23
The Guitarist Amplification
Season 3 • Episode 7
Sheldon tries to make peace when Leonard and Penny get into an argument.
Monday, March 23
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.
Monday, March 23
The Vengeance Formulation
Season 3 • Episode 9
After being humiliated on the radio, Sheldon vows to destroy Kripke.
Monday, March 23
The Gorilla Experiment
Season 3 • Episode 10
Sheldon tries to help Penny understand Leonard's work; Wolowitz gets jealous.
Monday, March 23
The Maternal Congruence
Season 3 • Episode 11
Leonard is horrified when his mother (Christine Baranski) visits.
Monday, March 23
The Psychic Vortex
Season 3 • Episode 12
Sheldon and Koothrappali attend a mixer; Leonard discovers that Penny believes in psychics.
Monday, March 23
The Bozeman Reaction
Season 3 • Episode 13
Leonard and Sheldon turn to their friends to create a state-of-the-art security system.
Monday, March 23
The Locomotion Reverberation
Season 10 • Episode 15
Leonard and Wolowitz try to distract Sheldon when he slows the progress of their guidance system.
Monday, March 23
The Hamburger Postulate
Season 1 • Episode 5
Leonard, trying to get over Penny, has an unexpected encounter with a fellow scientist.
Monday, March 23
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.
Monday, March 23
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.
Monday, March 23
The Collaboration Fluctuation
Season 10 • Episode 19
Leonard, Penny and Raj adjust to their new arrangement; Sheldon expresses interest in Amy's work.
Monday, March 23
The Recollection Dissipation
Season 10 • Episode 20
Sheldon collaborates on too many projects; Bernadette nears the end of her maternity leave.
Monday, March 23
The Separation Agitation
Season 10 • Episode 21
Howard and Bernadette struggle to leave Halley in day care; Bert introduces his new girlfriend.
Monday, March 23
The Cognition Regeneration
Season 10 • Episode 22
Leonard has concerns when Penny considers accepting a job offer from Zack, her ex-boyfriend.
Monday, March 23
The Gyroscopic Collapse
Season 10 • Episode 23
Leonard, Sheldon and Wolowitz get an unwelcome surprise after completing the Air Force project.
Monday, March 23
The Long Distance Dissonance
Season 10 • Episode 24
Sheldon's former admirer, Dr. Ramona Nowitzki, resurfaces while Amy is away at Princeton.
Tuesday, March 24
The Grant Allocation Derivation
Season 12 • Episode 7
Leonard struggles when he's given the responsibility of distributing extra grant money.
Tuesday, March 24
The Roommate Transmogrification
Season 4 • Episode 24
Bernadette gets her Ph.D., inspiring the guys to tease Wolowitz about his lack of a doctorate.
Tuesday, March 24
The Proposal Proposal
Season 11 • Episode 1
Amy answers Sheldon's marriage proposal; Howard and Bernadette struggle with unexpected news.
Tuesday, March 24
The Retraction Reaction
Season 11 • Episode 2
Leonard's job is at stake after he gives an embarrassing radio interview; Amy and Bernadette bond.
Tuesday, March 24
The Relaxation Integration
Season 11 • Episode 3
As Sheldon stresses about picking a wedding date, Amy tells him he can be more easygoing.
Tuesday, March 24
The Explosion Implosion
Season 11 • Episode 4
Wolowitz and Sheldon bond over having disappointing fathers; Leonard's mother befriends Penny.
Tuesday, March 24
The Collaboration Contamination
Season 11 • Episode 5
Penny and Leonard learn a secret from an unlikely source about dealing with Sheldon.
Tuesday, March 24
The Proton Regeneration
Season 11 • Episode 6
Sheldon auditions for the role of the new Professor Proton; Penny takes care of Halley.
Tuesday, March 24
The Geology Methodology
Season 11 • Episode 7
Sheldon tries to keep his collaboration with Bert a secret; Penny and Bernadette coach Koothrappali.
Tuesday, March 24
The Dumpling Paradox
Season 1 • Episode 7
Penny sleeps on Leonard and Sheldon's couch when Wolowitz takes over her apartment.
Tuesday, March 24
The Bitcoin Entanglement
Season 11 • Episode 9
Sheldon tries to teach the guys a lesson after being cut out of a potentially valuable investment.
Tuesday, March 24
The Confidence Erosion
Season 11 • Episode 10
Sheldon and Amy try to use math to eliminate wedding planning stress.
Tuesday, March 24
The Celebration Reverberation
Season 11 • Episode 11
Sheldon plans a dinner for Amy's birthday; Leonard receives a Christmas letter from his brother.
Tuesday, March 24
The Matrimonial Metric
Season 11 • Episode 12
Sheldon and Amy subject their friends to experiments; Penny reveals her feelings about Amy.
Tuesday, March 24
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, March 24
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, March 24
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, March 24
The Neonatal Nomenclature
Season 11 • Episode 16
When Bernadette won't go into labor, her friends try different tactics to get things started.
Wednesday, March 25
The Propagation Proposition
Season 12 • Episode 12
Penny's ex-boyfriend Zack learns that he is infertile, so he asks Leonard for help.
Wednesday, March 25
The Skank Reflex Analysis
Season 5 • Episode 1
Penny worries that she has ruined her relationship with her friends.
Wednesday, March 25
The Einstein Approximation
Season 3 • Episode 14
Sheldon tries to figure out the answer to a physics problem by working with Penny.
Wednesday, March 25
The Large Hadron Collision
Season 3 • Episode 15
Leonard must choose who to bring with him when he goes to see the Large Hadron Collider.
Wednesday, March 25
The Excelsior Acquisition
Season 3 • Episode 16
Sheldon ends up in traffic court after getting a ticket because of Penny.
Wednesday, March 25
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.
Wednesday, March 25
The Pants Alternative
Season 3 • Episode 18
Sheldon's stage fright stands between him and a coveted award.
Wednesday, March 25
The Wheaton Recurrence
Season 3 • Episode 19
Penny and Leonard have a fight that threatens their relationship; Sheldon and Wil Wheaton face off.
Wednesday, March 25
The Sibling Realignment
Season 11 • Episode 23
Sheldon's mother won't attend his wedding unless he invites his brother.
Wednesday, March 25
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.
Wednesday, March 25
The Confirmation Polarization
Season 12 • Episode 13
A rival team of physicists tries to take credit for Amy and Sheldon's super asymmetry theory.
Wednesday, March 25
The Meteorite Manifestation
Season 12 • Episode 14
Leonard is disappointed when his friends exclude him from a scientific project.
Wednesday, March 25
The Donation Oscillation
Season 12 • Episode 15
Penny tries to throw a wrench into Leonard's plan to be a sperm donor for her ex-boyfriend.
Wednesday, March 25
The D & D Vortex
Season 12 • Episode 16
The gang fights for the one open seat at Wil Wheaton's celebrity Dungeons and Dragons game.
Thursday, March 26
The Conference Valuation
Season 12 • Episode 17
When Penny and Bernadette go to a convention, Wolowitz is left in charge of the kids.
Thursday, March 26
The Infestation Hypothesis
Season 5 • Episode 2
Amy is caught in the middle when Penny and Sheldon argue over a pre-owned chair.
Thursday, March 26
The Conjugal Configuration
Season 12 • Episode 1
Penny and Leonard discover they are uncomfortably similar to Amy's parents.
Thursday, March 26
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, March 26
The Procreation Calculation
Season 12 • Episode 3
Stuart starts bringing his new girlfriend home; Koothrappali explores an arranged marriage.
Thursday, March 26
The Tam Turbulence
Season 12 • Episode 4
Sheldon won't tell anyone why he's never mentioned Tam, his childhood best friend.
Thursday, March 26
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, March 26
The Cooper-Hofstadter Polarization
Season 1 • Episode 9
Penny tries to mediate when Sheldon and Leonard disagree about a physics conference.
Thursday, March 26
The Laureate Accumulation
Season 12 • Episode 18
Sheldon and Amy try to win over Nobel laureates Kip Thorne, George Smoot and Frances Arnold.
Thursday, March 26
The Inspiration Deprivation
Season 12 • Episode 19
Wolowitz buys a scooter that looks like the one he had years ago.
Thursday, March 26
The Decision Reverberation
Season 12 • Episode 20
Koothrappali publishes a paper that suggests he may have discovered alien life.
Thursday, March 26
The Plagiarism Schism
Season 12 • Episode 21
Kripke has proof that Dr. Pemberton plagiarized his thesis in college.
Friday, March 27
The Maternal Conclusion
Season 12 • Episode 22
Leonard is pleasantly surprised when Beverly comes to visit, and she's genuinely kind to him.
Friday, March 27
The Pulled Groin Extrapolation
Season 5 • Episode 3
Bernadette, Howard and Mrs. Wolowitz spend the weekend together.
Friday, March 27
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, March 27
The Plimpton Stimulation
Season 3 • Episode 21
Sheldon invites a famous physicist to the apartment, and competes with Leonard for her attention.
Friday, March 27
The Staircase Implementation
Season 3 • Episode 22
Leonard tells Penny about how he met Sheldon and what happened to the elevator.
Friday, March 27
The Lunar Excitation
Season 3 • Episode 23
Raj and Howard set up an online dating profile for Sheldon and find the perfect woman.
Friday, March 27
The Robotic Manipulation
Season 4 • Episode 1
Penny tags along on Sheldon's first date; Wolowitz finds a new use for a robotic arm.
Friday, March 27
The Cruciferous Vegetable Amplification
Season 4 • Episode 2
Sheldon realizes he will not live long enough to download his consciousness into a robot body.
Friday, March 27
The Zazzy Substitution
Season 4 • Episode 3
When Sheldon searches for an alternative to human companionship, the guys become concerned.
Friday, March 27
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.
Friday, March 27
The Loobenfeld Decay
Season 1 • Episode 10
Leonard and Sheldon try to avoid seeing Penny perform after hearing her sing.
Friday, March 27
The Change Constant
Season 12 • Episode 23
Sheldon and Amy await big news.
Friday, March 27
The Stockholm Syndrome
Season 12 • Episode 24
Bernadette and Wolowitz leave their kids for the first time; Penny and Leonard try to keep a secret.
Friday, March 27
Pilot
Season 1 • Episode 1
Leonard likes new neighbor Penny, but his roommate thinks he is chasing an impossible dream.
Friday, March 27
The Big Bran Hypothesis
Season 1 • Episode 2
Leonard volunteers to sign for a package, hoping to make a good impression on Penny.
Saturday, March 28
The Fuzzy Boots Corollary
Season 1 • Episode 3
Unhappy that Penny is seeing someone, Leonard summons the courage to ask another woman out.
Saturday, March 28
The Wiggly Finger Catalyst
Season 5 • Episode 4
Raj wants a girlfriend, so Penny introduces him to a woman he can communicate with.
Saturday, March 28
The Birthday Synchronicity
Season 10 • Episode 11
Bernadette and Howard welcome their baby; Amy celebrates her birthday with Sheldon.
Saturday, March 28
The Holiday Summation
Season 10 • Episode 12
Sheldon and Amy visit Penny and Leonard and tell them about their terrible trip to Texas.
Saturday, March 28
The Romance Recalibration
Season 10 • Episode 13
Penny and Amy go on a spa weekend; Wolowitz and Koothrappali try to fix a squeaky floorboard.
Saturday, March 28
The Emotion Detection Automation
Season 10 • Episode 14
Sheldon tests an MIT invention after hearing it can help him read people's emotions.
Saturday, March 28
The Locomotion Reverberation
Season 10 • Episode 15
Leonard and Wolowitz try to distract Sheldon when he slows the progress of their guidance system.
Saturday, March 28
The Allowance Evaporation
Season 10 • Episode 16
Sheldon and Amy have a fight; Koothrappali stops receiving financial support from his father.
Saturday, March 28
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.
Saturday, March 28
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.
Saturday, March 28
The Collaboration Fluctuation
Season 10 • Episode 19
Leonard, Penny and Raj adjust to their new arrangement; Sheldon expresses interest in Amy's work.
Saturday, March 28
The Recollection Dissipation
Season 10 • Episode 20
Sheldon collaborates on too many projects; Bernadette nears the end of her maternity leave.
Saturday, March 28
The Zarnecki Incursion
Season 4 • Episode 19
The guys try to figure out who hacked Sheldon's online-game account.
Saturday, March 28
The Luminous Fish Effect
Season 1 • Episode 4
Getting fired gives Sheldon the opportunity to explore life beyond physics.
Saturday, March 28
The Hamburger Postulate
Season 1 • Episode 5
Leonard, trying to get over Penny, has an unexpected encounter with a fellow scientist.
Saturday, March 28
The Dumpling Paradox
Season 1 • Episode 7
Penny sleeps on Leonard and Sheldon's couch when Wolowitz takes over her apartment.
Saturday, March 28
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, March 29
The Cooper-Hofstadter Polarization
Season 1 • Episode 9
Penny tries to mediate when Sheldon and Leonard disagree about a physics conference.
Sunday, March 29
The Separation Agitation
Season 10 • Episode 21
Howard and Bernadette struggle to leave Halley in day care; Bert introduces his new girlfriend.
Sunday, March 29
The Cognition Regeneration
Season 10 • Episode 22
Leonard has concerns when Penny considers accepting a job offer from Zack, her ex-boyfriend.
Sunday, March 29
The Gyroscopic Collapse
Season 10 • Episode 23
Leonard, Sheldon and Wolowitz get an unwelcome surprise after completing the Air Force project.
Sunday, March 29
The Long Distance Dissonance
Season 10 • Episode 24
Sheldon's former admirer, Dr. Ramona Nowitzki, resurfaces while Amy is away at Princeton.
Sunday, March 29
The Proposal Proposal
Season 11 • Episode 1
Amy answers Sheldon's marriage proposal; Howard and Bernadette struggle with unexpected news.
Sunday, March 29
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, March 29
The Relaxation Integration
Season 11 • Episode 3
As Sheldon stresses about picking a wedding date, Amy tells him he can be more easygoing.
Sunday, March 29
The Explosion Implosion
Season 11 • Episode 4
Wolowitz and Sheldon bond over having disappointing fathers; Leonard's mother befriends Penny.
Sunday, March 29
The Collaboration Contamination
Season 11 • Episode 5
Penny and Leonard learn a secret from an unlikely source about dealing with Sheldon.
Sunday, March 29
The Proton Regeneration
Season 11 • Episode 6
Sheldon auditions for the role of the new Professor Proton; Penny takes care of Halley.
Sunday, March 29
The Meteorite Manifestation
Season 12 • Episode 14
Leonard is disappointed when his friends exclude him from a scientific project.
Sunday, March 29
The Donation Oscillation
Season 12 • Episode 15
Penny tries to throw a wrench into Leonard's plan to be a sperm donor for her ex-boyfriend.
Sunday, March 29
The D & D Vortex
Season 12 • Episode 16
The gang fights for the one open seat at Wil Wheaton's celebrity Dungeons and Dragons game.
Sunday, March 29
The Conference Valuation
Season 12 • Episode 17
When Penny and Bernadette go to a convention, Wolowitz is left in charge of the kids.
Sunday, March 29
The Laureate Accumulation
Season 12 • Episode 18
Sheldon and Amy try to win over Nobel laureates Kip Thorne, George Smoot and Frances Arnold.
Sunday, March 29
The Inspiration Deprivation
Season 12 • Episode 19
Wolowitz buys a scooter that looks like the one he had years ago.
Sunday, March 29
The Decision Reverberation
Season 12 • Episode 20
Koothrappali publishes a paper that suggests he may have discovered alien life.
Sunday, March 29
The Plagiarism Schism
Season 12 • Episode 21
Kripke has proof that Dr. Pemberton plagiarized his thesis in college.
Sunday, March 29
The Jerusalem Duality
Season 1 • Episode 12
Sheldon and Leonard look for a way to derail a 15-year-old physics prodigy's research.
Sunday, March 29
The Bat Jar Conjecture
Season 1 • Episode 13
The guys kick Sheldon off the Physics Bowl team and bring his nemesis aboard.
Monday, March 30
The Nerdvana Annihilation
Season 1 • Episode 14
Penny tells the guys their obsession with comics and toys is pathetic.
Monday, March 30
The First Pitch Insufficiency
Season 8 • Episode 3
Wolowitz feels nervous when he is asked to throw the first pitch at a Los Angeles Angels game.
Monday, March 30
The Hook-Up Reverberation
Season 8 • Episode 4
Raj's honesty comes back to haunt him when his new girlfriend is unfriendly to Penny.
Monday, March 30
The Desperation Emanation
Season 4 • Episode 5
Leonard realizes he is the only one in his group without a girlfriend.
Monday, March 30
The Irish Pub Formulation
Season 4 • Episode 6
Leonard keeps an affair a secret from Sheldon, Howard and Raj.
Monday, March 30
The Apology Insufficiency
Season 4 • Episode 7
Sheldon's interview with the FBI jeopardizes Wolowitz's security clearance.
Monday, March 30
The 21-Second Excitation
Season 4 • Episode 8
The guys camp out for a movie screening; Penny and Bernadette invite Amy to her first slumber party.
Monday, March 30
The Boyfriend Complexity
Season 4 • Episode 9
Penny asks Leonard to lie to her father; an all-nighter at a telescope.
Monday, March 30
The Alien Parasite Hypothesis
Season 4 • Episode 10
Koothrappali and Wolowitz try to prove who would be a better superhero.
Monday, March 30
The Justice League Recombination
Season 4 • Episode 11
The guys try to bond with Penny's new boyfriend through a costume contest.
Monday, March 30
The Bus Pants Utilization
Season 4 • Episode 12
Leonard's idea for a smartphone application causes friction in his friendship with Sheldon.
Monday, March 30
The Luminous Fish Effect
Season 1 • Episode 4
Getting fired gives Sheldon the opportunity to explore life beyond physics.
Monday, March 30
The Pancake Batter Anomaly
Season 1 • Episode 11
Leonard and the boys avoid Sheldon when he gets sick, leaving Penny to nurse him back to health.
Monday, March 30
The Middle Earth Paradigm
Season 1 • Episode 6
Leonard, Sheldon, Wolowitz and Koothrappali attend Penny's Halloween party.
Monday, March 30
The Dumpling Paradox
Season 1 • Episode 7
Penny sleeps on Leonard and Sheldon's couch when Wolowitz takes over her apartment.
Monday, March 30
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.
Monday, March 30
The Cooper-Hofstadter Polarization
Season 1 • Episode 9
Penny tries to mediate when Sheldon and Leonard disagree about a physics conference.
Monday, March 30
The Loobenfeld Decay
Season 1 • Episode 10
Leonard and Sheldon try to avoid seeing Penny perform after hearing her sing.
Monday, March 30
The Jerusalem Duality
Season 1 • Episode 12
Sheldon and Leonard look for a way to derail a 15-year-old physics prodigy's research.
Monday, March 30
The Bat Jar Conjecture
Season 1 • Episode 13
The guys kick Sheldon off the Physics Bowl team and bring his nemesis aboard.
Monday, March 30
The Nerdvana Annihilation
Season 1 • Episode 14
Penny tells the guys their obsession with comics and toys is pathetic.
Tuesday, March 31
The Codpiece Topology
Season 2 • Episode 2
Leonard rushes into a rebound relationship with Sheldon's nemesis.
Tuesday, March 31
The Russian Rocket Reaction
Season 5 • Episode 5
Wil Wheaton invites Leonard and Sheldon to a party at his house; Howard receives an opportunity.
Tuesday, March 31
The Pork Chop Indeterminacy
Season 1 • Episode 15
Leonard, Wolowitz and Koothrappali fall for Sheldon's twin sister.
Tuesday, March 31
The Peanut Reaction
Season 1 • Episode 16
Penny learns that Leonard does not celebrate birthdays, so she plans a surprise party.
Tuesday, March 31
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.
Tuesday, March 31
The Pancake Batter Anomaly
Season 1 • Episode 11
Leonard and the boys avoid Sheldon when he gets sick, leaving Penny to nurse him back to health.
Tuesday, March 31
The Bad Fish Paradigm
Season 2 • Episode 1
Penny's first date with Leonard goes awry; Penny finds Sheldon to be an unwilling confidant.
Tuesday, March 31
The Codpiece Topology
Season 2 • Episode 2
Leonard rushes into a rebound relationship with Sheldon's nemesis.
Tuesday, March 31
The Barbarian Sublimation
Season 2 • Episode 3
Sheldon creates a monster when he introduces Penny to online gaming.
Tuesday, March 31
The Jerusalem Duality
Season 1 • Episode 12
Sheldon and Leonard look for a way to derail a 15-year-old physics prodigy's research.
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