The Big Bang Theory Wiki

On Tuesday, January 12, 2016, Chuck Lorre announced that Season 10 wouldn't be the last season, which means there is a Season 11. The CBS network has also said there will be a Season 11. On Tuesday, March 21, 2017, it was announced that the show was renewed for an eleventh and twelfth season. It premiered on Monday, September 25.

This season marks the ten year anniversary of the show.

During this season, the other members of the cast took a pay cut so Mayim Bialik and Melissa Rauch could have a raise.


Main Cast[]

Recurring Cast[]

Guest Cast[]


Episode (Series)

Episode (Season/Ep#)

Title Original Air Date Directed By Description
232 1101 The Proposal Proposal September 25, 2017 Mark Cendrowski Amy answers Sheldon's marriage proposal and Howard and Bernadette are expecting another baby.
233 1102 The Retraction Reaction October 2, 2017 Mark Cendrowski Leonard is interviewed by NPR on what's new in physics which does not go well. Meanwhile, Bernadette and Amy talk about their success.
234 1103 The Relaxation Integration October 9, 2017 Mark Cendrowski Sheldon struggles with picking a wedding date, while Amy tells him to learn to relax. Raj and Stuart fight over a co-worker of Bernadette's.
235 1104 The Explosion Implosion October 16, 2017 Mark Cendrowski Howard is worried about raising a son. He tries to regenerate his interest in model rockets with Sheldon.
236 1105 The Collaboration Contamination October 23, 2017 Nikki Lorre Leonard and Penny use Bernadette's parenting book to try and control Sheldon. Meanwhile Howard and Amy work together in their lab causing Raj, Bernadette and Sheldon to feel jealous and lonely.
237 1106 The Proton Regeneration November 2, 2017 Mark Cendrowski Sheldon and Wil Wheaton go head to head for the role of Professor Proton. Penny takes care of Halley when Howard and Bernadette are both on bed rest.
238 1107 The Geology Methodology November 9, 2017 Mark Cendrowski Sheldon helps Bert and is fascinated by his work, but is embarrassed to tell his friends. Raj meets up with Ruchi again. Penny, Stuart and Howard think he will mess up again.
239 1108 The Tesla Recoil November 16, 2017 Anthony Rich Leonard and Howard are furious after they learn Sheldon went to work with the military behind their backs. Bernadette asks Raj to do some digging when she suspects Ruchi is trying to steal her job.
240 1109 The Bitcoin Entanglement November 30, 2017 Mark Cendrowski Sheldon tries to teach the guys a lesson after they cut him out of their Bitcoin mining operation. Also, a seven-year-old video reveals a secret about Leonard and Penny’s relationship.
241 1110 The Confidence Erosion December 7, 2017 Mark Cendrowski Sheldon and Amy try to eliminate stress from wedding planning by applying math to the process ending up at city hall. Also, Raj “breaks up” with Howard after realizing his best friend is actually hurting his confidence.
242 1111 The Celebration Reverberation December 14, 2017 Mark Cendrowski Sheldon throws Amy a birthday party while Howard and Raj have tension between them.
243 1112 The Matrimonial Metric January 4, 2018 Mark Cendrowski Sheldon and Amy try to use science to decide who will be their maid of honor and best man. Penny discovers her true feelings about Amy.
244 1113 The Solo Oscillation January 11, 2018 Mark Cendrowski Sheldon decides to work alone in their apartment without Amy so she goes to live with Leonard and Penny. Bert replaces Howard in "Footprints on the Moon".
245 1114 The Separation Triangulation January 18, 2018 Mark Cendrowski Raj finds himself in the middle of domestic triangle while Sheldon rents his old room back for a quiet place to work and drives Leonard crazy by being a model tenant.
246 1115 The Novelization Correlation February 1, 2018 Mark Cendrowski Leonard has trouble trying to explain who his lead female character is based on. Amy gets to be a guest on the new Professor Proton show.
247 1116 The Neonatal Nomenclature March 1, 2018 Gay Linvill When Bernadette won't go into labor, all her friends try different tactics to get things started. Also, Howard confronts Bernadette after Amy accidentally reveals she's already chosen their son's name.
248 1117 The Athenaeum Allocation March 8, 2018 Mark Cendrowski Leonard jumps through hoops to help secure the perfect wedding venue for Sheldon and Amy. Also, Bernadette and Howard have a hard time deciding who should stay at home with the kids and which parent should go back to work.
249 1118 The Gates Excitation March 29, 2018 Mark Cendrowski Everyone gets excited when computer geek Bill Gates visits Penny at work. Amy gets tired of Bernadette continually talking abut her kids.
250 1119 The Tenant Disassociation April 5, 2018 Mark Cendrowski When Leonard learns Sheldon is the president of the tenants' association, he decides to run against him. Also, Bernadette encourages Howard and Raj to find the owner of a drone after they find it in the backyard.
251 1120 The Reclusive Potential April 12, 2018 Mark Cendrowski A brilliant but reclusive scientist, Robert 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.
252 1121 The Comet Polarization April 19, 2018 Mark Cendrowski Penny & Raj fight over who discovered a comet. The comic book store becomes popular, which Sheldon doesn't like. Howard and Bernadette try to arrange a date night.
253 1122 The Monetary Insufficiency April 26, 2018 Nikki Lorre 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.
254 1123 The Sibling Realignment May 3, 2018 Mark Cendrowski Mary Cooper refuses to come to the wedding if Sheldon doesn't invite his older brother George. Almost everyone gets pinkeye from the Wolowitz children threatening the wedding. Raj needs to find a date.
255 1124 The Bow Tie Asymmetry May 10, 2018 Mark Cendrowski When Amy's parents and Sheldon's family arrive, everybody is focused to make sure all wedding arrangements go according to plan – everyone except the bride and groom.