The Big Bang Theory

Episodes

Season 11 · 24 episodes

• E1 The Proposal Proposal
  Sep 25, 2017 25 min

  Amy gives Sheldon an answer to his proposal while Howard and Bernadette struggle with some unexpected news.

• E2 The Retraction Reaction
  Oct 2, 2017 25 min

  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.

• E3 The Relaxation Integration
  Oct 9, 2017 25 min

  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.

• E4 The Explosion Implosion
  Oct 16, 2017 25 min

  Wolowitz 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.

• E5 The Collaboration Contamination
  Oct 23, 2017 25 min

  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.

• E6 The Proton Regeneration
  Nov 2, 2017 25 min

  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.

• E7 The Geology Methodology
  Nov 9, 2017 25 min

  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.

• E8 The Tesla Recoil
  Nov 16, 2017 25 min

  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.

• E9 The Bitcoin Entanglement
  Nov 30, 2017 25 min

  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.

• E10 The Confidence Erosion
  Dec 7, 2017 25 min

  Sheldon and Amy try to eliminate stress from wedding planning by applying math to the process. Koothrappali “breaks up” with Wolowitz after realizing his best friend is actually hurting his confidence.

• E11 The Celebration Reverberation
  Dec 14, 2017 25 min

  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.

• E12 The Matrimonial Metric
  Jan 4, 2018 25 min

  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.

• E13 The Solo Oscillation
  Jan 11, 2018 25 min

  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.

• E14 The Separation Triangulation
  Jan 18, 2018 25 min

  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.

• E15 The Novelization Correlation
  Feb 1, 2018 25 min

  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.

• E16 The Neonatal Nomenclature
  Mar 1, 2018 25 min

  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.

• E17 The Athenaeum Allocation
  Mar 8, 2018 25 min

  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.

• E18 The Gates Excitation
  Mar 29, 2018 25 min

  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.

• E19 The Tenant Disassociation
  Apr 5, 2018 25 min

  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.

• E20 The Reclusive Potential
  Apr 12, 2018 25 min

  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.

• E21 The Comet Polarization
  Apr 19, 2018 25 min

  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.

• E22 The Monetary Insufficiency
  Apr 26, 2018 25 min

  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.

• E23 The Sibling Realignment
  May 3, 2018 25 min

  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 infects Amy, Bernadette, Wolowitz and Koothrappali with pinkeye.

• E24 The Bow Tie Asymmetry
  May 10, 2018 25 min

  When Amy’s parents and Sheldon’s family arrive for the wedding, everybody is focused on making sure all goes according to plan – everyone except the bride and groom.