Last episode
The Stockholm Syndrome
s12e24 · 2019-05-17
Ended · US
The Big Bang Theory
CBS Scripted
What it is
The Big Bang Theory is a comedy about brilliant physicists, Leonard and Sheldon, who are the kind of "beautiful minds" that understand how the universe works. But none of that genius helps them interact with people, especially women. All this begins to change when a free-spirited beauty named Penny moves in next door. Sheldon, Leonard's roommate, is quite content spending his nights playing Klingon Boggle with their socially dysfunctional friends, fellow Cal Tech scientists Wolowitz and Koothrappali. However, Leonard sees in Penny a whole new universe of possibilities... including love.
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24 this season · 279 totals11e01 The Proposal Proposal 2017-09-26 00:00
The Proposal Proposal
Amy gives Sheldon an answer to his proposal while Howard and Bernadette struggle with some unexpected news.
s11e02 The Retraction Reaction 2017-10-03 00:00
The Retraction Reaction
Leonard angers the university – and the entire physics community – after he gives an embarrassing interview. Also, Amy and Bernadette bond over having to hide their success from Sheldon and Howard.
s11e03 The Relaxation Integration 2017-10-10 00:00
The Relaxation Integration
As Sheldon stresses about picking a wedding date, Amy tries to convince him he has a more laid-back side. Also, Koothrappali and Stuart compete to win the heart of Bernadette's new coworker, Ruchi.
s11e04 The Explosion Implosion 2017-10-17 00:00
The Explosion Implosion
Howard and Sheldon bond when they drive to the desert to shoot off a model rocket. Also, when Leonard's mom, Beverly, finds a new best friend in Penny, it rubs Leonard the wrong way.
s11e05 The Collaboration Contamination 2017-10-24 00:00
The Collaboration Contamination
Sheldon and Koothrappali confide in Bernadette when they can't handle Amy and Wolowitz working together. Also, Penny and Leonard learn new tactics for how to deal Sheldon from an unlikely source.
s11e06 The Proton Regeneration 2017-11-03 00:00
The Proton Regeneration
Sheldon goes head-to-head with Wil Wheaton for the role of the new Professor Proton. Also, Penny steps in to take care of Halley when Bernadette and Wolowitz both wind up on bed rest.
s11e07 The Geology Methodology 2017-11-10 01:00
The Geology Methodology
Sheldon and Bert collaborate on a research project, despite Sheldon's embarrassment. Also, Penny and Bernadette coach Koothrappali on how to navigate his relationship with Ruchi.
s11e08 The Tesla Recoil 2017-11-17 01:00
The Tesla Recoil
Leonard and Wolowitz are furious after they learn Sheldon went to work with the military behind their backs. Also, while Bernadette is on bed rest, she asks Raj to do some digging when she suspects Ruchi is trying to steal her job.
s11e09 The Bitcoin Entanglement 2017-12-01 01:00
The Bitcoin Entanglement
Sheldon tries to teach the guys a lesson after they cut him out of a potentially valuable Bitcoin investment. Also, a seven-year-old video reveals a secret about Leonard and Penny's relationship.
s11e10 The Confidence Erosion 2017-12-08 01:00
The Confidence Erosion
Sheldon and Amy try to eliminate stress from wedding planning by applying math to the process. Also, Koothrappali 'breaks up' with Wolowitz after realizing his best friend is actually hurting his confidence.
s11e11 The Celebration Reverberation 2017-12-15 01:00
The Celebration Reverberation
Sheldon and Wolowitz plan birthday celebrations for Amy and Halley, respectively. Also, Leonard receives a Christmas letter from his brother that causes him to spiral out about his own lack of accomplishments.
s11e12 The Matrimonial Metric 2018-01-05 01:00
The Matrimonial Metric
To discover who would be most qualified to be best man and maid of honor at their wedding, Sheldon and Amy subject their friends to a series of secret experiments. Also, Penny reveals her true feelings about Amy.
s11e13 The Solo Oscillation 2018-01-12 01:00
The Solo Oscillation
When Sheldon kicks Amy out to work solo, she and Leonard bond during a series of science experiments. Also, Bert the geologist replaces Wolowitz in the band Footprints on the Moon, and Sheldon finds Penny a surprising source of scientific inspiration.
s11e14 The Separation Triangulation 2018-01-19 01:00
The Separation Triangulation
Koothrappali finds himself in the middle of domestic drama when he learns the woman he's dating, Nell, has a very upset husband, Oliver. Also, when Sheldon rents his old room back for a quiet place to work, he drives Leonard crazy by being a model tenant.
s11e15 The Novelization Correlation 2018-02-02 01:00
The Novelization Correlation
When Sheldon petitions Wil Wheaton to appear on the new Professor Proton show, Wil offers a role to Amy instead. Also, Penny gets angry when she thinks the female protagonist in Leonard's novel is based on her.
s11e16 The Neonatal Nomenclature 2018-03-02 01:00
The Neonatal Nomenclature
When Bernadette won't go into labor, all her friends try different tactics to get things started. Also, Wolowitz confronts Bernadette after Amy accidentally reveals she's already chosen their son's name.
s11e17 The Athenaeum Allocation 2018-03-09 01:00
The Athenaeum Allocation
Leonard jumps through hoops to help secure the perfect wedding venue for Sheldon and Amy. Also, Bernadette and Wolowitz have a hard time deciding who should stay at home with the kids and who should go back to work.
s11e18 The Gates Excitation 2018-03-30 00:00
The Gates Excitation
Penny gets the opportunity to host Bill Gates at work when his company wants to partner with her pharmaceutical company. Also, Leonard, Koothrappali and Wolowitz do everything in their power to meet him, while Sheldon thinks he is the victim of an April Fools prank.
s11e19 The Tenant Disassociation 2018-04-06 00:00
The Tenant Disassociation
When Leonard learns Sheldon is the president of the tenants association, he decides to run against him. Also, Bernadette encourages Wolowitz and Koothrappali to find the owner of a drone after they find it in the backyard.
s11e20 The Reclusive Potential 2018-04-13 00:00
The Reclusive Potential
A brilliant but reclusive scientist, Doctor Wolcott, invites Sheldon to his cabin in the middle of nowhere, and Leonard, Raj and Howard go along for the trip. Also, Penny and Bernadette improvise after Amy doesn't like the tame bachelorette party they planned for her.
s11e21 The Comet Polarization 2018-04-20 00:00
The Comet Polarization
Sheldon's comic book store experiences changes when writer Neil Gaiman puts Stuart's store on the map. Also, Koothrappali takes credit for Penny's astronomical discovery, and friendships are threatened.
s11e22 The Monetary Insufficiency 2018-04-27 00:00
The Monetary Insufficiency
Sheldon goes to Vegas to win money for science. Also, Penny and Bernadette take Amy wedding dress shopping, but her terrible choice entangles them in a web of lies.
s11e23 The Sibling Realignment 2018-05-04 00:00
The Sibling Realignment
When Sheldon learns that his mother won't attend his wedding unless he invites his brother, Georgie, he and Leonard travel to Texas to end a family feud. Also, the Wolowitz kids inadvertently infest Amy, Bernadette, Wolowitz and Koothrappali with pinkeye.
s11e24 The Bow Tie Asymmetry 2018-05-11 00:00
The Bow Tie Asymmetry
Amy and Sheldon's wedding provides Sheldon with the information he needs to make a breakthrough in his symmetrical string theory. Meanwhile, their friends pick up Sheldon and Amy's families from the airport, and Mark Hamill agrees to officiate at the ceremony.