The Big Bang Theory Wiki

Season 10 was confirmed on May 12, 2014, along with seasons 8 and 9. It aired in the 2016–17 season. It premiered on September 19, 2016.[1] The season ended on May 11, 2017.

The series was officially picked up for seasons 11 and 12 on March 21, with all of the principal cast signing new two-year contracts. Melissa Rauch and Mayim Bialik were the last to sign on April 28, 2017, receiving substantial salary increases due in no small part to the rest of the principal cast shifting some of their salaries to them.[2]


Main Cast[]

Recurring Cast[]

Guest Cast[]


Episode (Series)

Episode (Season/Ep#)

Title Original Air Date[3] Directed By Description
208 1001 The Conjugal Conjecture September 19, 2016 Mark Cendrowski Leonard and Penny's parents and friends assemble to watch their vow renewal and worry about the families meeting each other. Howard meets with an Air Force Captain about their gyroscope. Alfred and Mary announce that they are still seeing each other.
209 1002 The Military Miniaturization September 26, 2016 Mark Cendrowski The Air Force wants to buy the guys' invention and Penny lets Bernadette's pregnancy secret slip at work.
210 1003 The Dependence Transcendence October 3, 2016 Mark Cendrowski Sheldon can't keep up with the late nights Howard and Leonard are putting in on their project, Raj spends the day with a pregnant Bernadette and Penny and Amy attend a faculty party.
211 1004 The Cohabitation Experimentation October 10, 2016 Mark Cendrowski After Amy's apartment is flooded, she proposes to Sheldon that they live together as an experiment and he agrees. Howard and Bernadette wonder about knowing the sex of their baby.
212 1005 The Hot Tub Contamination October 17, 2016 Mark Cendrowski Shamy navigate the problems of living together, while Howard and Bernadette decide to take a vacation to Palm Springs, but then take a secret vacation at home; Raj and Stuart, thinking they've left, make use of their hot tub.
213 1006 The Fetal Kick Catalyst October 27, 2016 Mark Cendrowski Penny is a guest at a comic book convention, Shamy has a brunch in their apartment and Howard feels their baby kick.
214 1007 The Veracity Elasticity November 3, 2016 Mark Cendrowski Amy lies to Sheldon about her apartment no longer being uninhabitable. Leonard is told that Penny is secretly relocating his belongings behind his back.
215 1008 The Brain Bowl Incubation November 10, 2016 Mark Cendrowski Amy combines their DNA in an experiment and Sheldon gets the idea that they should have a baby. Raj falls for one of the Caltech maintenance employees.
216 1009 The Geology Elevation November 17, 2016 Mark Cendrowski Sheldon gets jealous of a grant that Bert gets for his geology research.
217 1010 The Property Division Collision December 1, 2016 Mark Cendrowski Sheldon and Leonard argue over dividing up their possessions and Stuart moves back in with Howard and Bernadette.
218 1011 The Birthday Synchronicity December 15, 2016 Nikki Lorre The arrival of Bernadette's baby coincides with/interrupts Amy's birthday sex.
219 1012 The Holiday Summation January 5, 2017 Mark Cendrowski Sheldon and Amy visit Mary in Texas together. Leonard and Penny goes to get a Christmas tree and Halley Wolowitz won't stop crying.
220 1013 The Romance Recalibration January 19, 2017 Mark Cendrowski Penny thinks that Leonard takes her for granted so she takes Amy on her spa weekend instead of Leonard.
221 1014 The Emotion Detection Automation February 2, 2017 Mark Cendrowski Penny tries to get Randall a job interview, Sheldon has a machine to help him read emotions and Raj reunites with his ex-girlfriends.
222 1015 The Locomotion Reverberation February 9, 2017 Mark Cendrowski Howard and Leonard try to make their invention even smaller without Sheldon, while the girls take the new mother Bernadette out.
223 1016 The Allowance Evaporation February 16, 2017 Mark Cendrowski Sheldon and Amy have their first fight; Raj stops receiving support from his father.
224 1017 The Comic-Con Conundrum February 23, 2017 Mark Cendrowski Raj asks Sheldon for help on how to get out of debt. Penny considers going to Comic-Con with Leonard.
225 1018 The Escape Hatch Identification March 9, 2017 Mark Cendrowski Raj moves out of his apartment and Leonard and Penny offer him Sheldon's old room.
226 1019 The Collaboration Fluctuation March 30, 2017 Mark Cendrowski Leonard, Penny and Raj adjust to their new living arrangement, and Sheldon takes an interest in Amy's work.
227 1020 The Recollection Dissipation April 6, 2017 Mark Cendrowski Sheldon loses his journal, and Bernadette frets about returning to work because her maternity leave is almost up.
228 1021 The Separation Agitation April 13, 2017 Mark Cendrowski Howard and Bernadette have a hard time leaving Halley in day care when Bernadette returns to work. Also, Bert introduces the gang to his new girlfriend, Rebecca.
229 1022 The Cognition Regeneration April 27, 2017 Mark Cendrowski Leonard is less than thrilled when Penny's ex-boyfriend, Zack, offers her a job.
230 1023 The Gyroscopic Collapse May 4, 2017 Mark Cendrowski Amy is offered fellowship at Princeton, Raj makes new living arrangements and the Gyroscopic Project is spinning out of control.
231 1024 The Long Distance Dissonance May 11, 2017[4] Mark Cendrowski The gang becomes concerned for Sheldon when his former admirer, Ramona Nowitzki, reappears while Amy is away at Princeton.



Raj Talks Without Alcohol