The Big Bang Theory/Season Twelve

Season Twelve
The Big Bang Theory
Season Premiere	September 24, 2018
Season Finale	May 16, 2019
Episode Count	24 + special
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Season Twelve of The Big Bang Theory premiered on September 24, 2018.

Episodes

#	#	Title	Written By	Directed By	Airdate	Viewers	18-49 Rating	Prod.
256	1	The Conjugal Configuration	Chuck Lorre & Eric Kaplan & Tara Hernandez	Mark Cendrowski	September 24, 2018	12.924M	2.5%	T12.16001
Sheldon and Amy's honeymoon runs aground in New York, while Penny and Leonard discover they are uncomfortably similar to Amy's parents, Mr. and Mrs. Fowler. Also, Koothrappali insults physicist Neil deGrasse Tyson and starts a Twitter war. Teleplay by Steve Holland & Maria Ferrari & Jeremy Howe
257	2	The Wedding Gift Wormhole	Steve Holland & Steven Molaro & Maria Ferrari	Mark Cendrowski	September 27, 2018	12.038M	2.2%	T12.16002
Sheldon and Amy drive themselves crazy trying to figure out what "perfect gift" Leonard and Penny gave them for their wedding. Also, Koothrappali decides he wants to settle down and asks his father to arrange a marriage for him. Teleplay by Dave Goetsch & Eric Kaplan & Andy Gordon
258	3	The Procreation Calculation	Chuck Lorre & Tara Hernandez & Adam Faberman	Mark Cendrowski	October 4, 2018	12.289M	2.2%	T12.16003
The Wolowitzes' life gets complicated when Stuart starts bringing his new girlfriend home. Also, Penny and Leonard talk about starting a family while Koothrappali explores an arranged marriage. Teleplay by Steve Holland & Maria Ferrari & Anthony Del Broccolo
259	4	The Tam Turbulence	Steve Holland & Steven Molaro & Maria Ferrari	Mark Cendrowski	October 11, 2018	12.94M	2.3%	T12.16004
When Sheldon won't tell anyone why he's never mentioned Tam, his childhood best friend, Leonard takes matters into his own hands. Also, Bernadette and Penny take out Raj's fiancée, Anu, for dinner to get the skinny on her. Teleplay by Dave Goetsch & Eric Kaplan & Jeremy Howe
260	5	The Planetarium Collision	Eric Kaplan & Andy Gordon & Alex Ayers	Mark Cendrowski	October 18, 2018	12.222M	2.1%	T12.16005
When Amy doesn't have time to work on super-asymmetry, Sheldon goes to great lengths to ensure she's available to work with him even it if means accidentally sabotaging her career in the process. Also, Koothrappali doesn't want Wolowitz to join him in hosting a show at the planetarium. Teleplay by Steve Holland & Maria Ferrari & Tara Hernandez
261	6	The Imitation Perturbation	Steve Holland & Maria Ferrari & Tara Hernandez	Mark Cendrowski	October 25, 2018	12.994M	2.3%	T12.16006
When Wolowitz dresses up as Sheldon for Halloween, Sheldon seeks retaliation at Leonard and Penny's Halloween party. Also, Leonard is shocked that Penny doesn't remember their first kiss. Teleplay by Eric Kaplan & Jeremy Howe & Adam Faberman
262	7	The Grant Allocation Derivation	Eric Kaplan & Anthony Del Broccolo & Alex Yonks	Mark Cendrowski	November 1, 2018	12.644M	2.1%	T12.16007
Leonard is caught between a rock and a hard place when he's responsible for distributing extra grant money. Also, Bernadette turns the backyard playhouse into a hideaway from her husband and kids. Teleplay by Steve Holland & Dave Goetsch & Maria Ferrari
263	8	The Consummation Deviation	Chuck Lorre & Steve Holland & Maria Ferrari	Mark Cendrowski	November 8, 2018	12.845M	2.3%	T12.16008
Sheldon tries to bond with Amy’s father, but when Wolowitz lures Mr. Fowler away with magic tricks, Sheldon has no choice but to bond with Mrs. Fowler. Also, Koothrappali and Anu try to get physical for the first time. Teleplay by Eric Kaplan & Andy Gordon & Adam Faberman
264	9	The Citation Negation	Eric Kaplan & Tara Hernandez & Jeremy Howe	Kristy Cecil	November 15, 2018	12.557M	2.3%	T12.16009
Sheldon and Amy are devastated after learning from a Russian paper that Super Asymmetry has already been discovered and disproven. Also, ultra-competitive Bernadette asks Stuart's girlfriend, Denise, to teach her how to beat Howard in a popular videogame. Teleplay by Steve Holland & Dave Goetsch & Maria Ferrari
265	10	The VCR Illumination	Steve Holland & Steven Molaro & Bill Prady	Mark Cendrowski	December 6, 2018	12.521M	2.1%	T12.16010
Sheldon and Amy are still down about their theory being disproven, but a VHS tape from Sheldon's past inspires him not to give up. Also, Bernadette turns into a pageant mom when she tries to help Wolowitz ace his Magic Castle audition. Teleplay by Maria Ferrari & Andy Gordon & Jeremy Howe
266	11	The Paintball Scattering	Maria Ferrari & Tara Hernandez & Adam Faberman	Mark Cendrowski	January 3, 2019	12.796M	2.2%	T12.16011
Penny and Leonard organize a paintball game that results in mayhem when Sheldon is jealous of Amy. Also, Koothrappali catches Anu with her ex-boyfriend, and Stuart doesn't want to move in with Denise. Teleplay by Steve Holland & Eric Kaplan & Anthony Del Broccolo
267	12	The Propagation Proposition	Chuck Lorre & Steve Holland & Jeremy Howe	Mark Cendrowski	January 10, 2019	13.527M	2.4%	T12.16012
Penny's ex-boyfriend, Zack, and his wife want a baby, but when Zack is infertile, they ask Leonard for help. Also, Koothrappali attempts to mend things with his ex-fiancée, Anu. Teleplay by Maria Ferrari & Dave Goetsch & Eric Kaplan
268	13	The Confirmation Polarization	Eric Kaplan & Andy Gordon & Anthony Del Broccolo	Mark Cendrowski	January 17, 2019	13.323M	2.3%	T12.16013
When Sheldon and Amy's super asymmetry theory is proven by two physicists, Dr. Pemberton and Dr. Campbell from Chicago, they're thrilled, until they try to kick Amy off the Nobel nomination. Also, Bernadette has a big success at work and Penny's going to be a part of it - whether she wants to or not. Teleplay by Steve Holland & Maria Ferrari & Tara Hernandez
269	14	The Meteorite Manifestation	Chuck Lorre & Steve Holland & Maria Ferrari	Mark Cendrowski	January 31, 2019	13.663M	2.4%	T12.16014
Sheldon is thrilled to help Bernadette and Wolowitz navigate bureaucratic paperwork, until he discovers they are breaking the law. Also, Leonard is disappointed when his friends exclude him from a scientific project. Teleplay by Eric Kaplan & Tara Hernandez & Jeremy Howe
270	15	The Donation Oscillation	Bill Prady & Jeremy Howe & Adam Faberman	Mark Cendrowski	February 7, 2019	14.152M	2.6%	T12.16015
Penny tries to seduce an abstaining Leonard to ruin his "donation" for her ex-boyfriend, Zack, and his wife, Marissa. Also, Wolowitz, Bernadette, Anu and Koothrappali turn Koothrappali's canceled bachelor party into a couple's trip aboard the "vomit comet." Teleplay by Steve Holland & Dave Goetsch & Maria Ferrari
271	16	The D & D Vortex	Steve Holland & Maria Ferrari & Anthony Del Broccolo	Mark Cendrowski	February 21, 2019	13.379M	2.3%	T12.16016
When the gang finds out Wil Wheaton hosts a celebrity Dungeons and Dragons game involving William Shatner, Joe Manganiello, Kareem Abdul-Jabbar and Kevin Smith, deception and betrayal are the path to make it to the one open seat. Teleplay by Eric Kaplan & Andy Gordon & Tara Hernandez
272	17	The Conference Valuation	Chuck Lorre & Steven Molaro & Eric Kaplan	Mark Cendrowski	March 7, 2019	12.994M	2.1%	T12.16017
When Penny and Bernadette go to San Diego for a pharmaceutical sales convention, Wolowitz is in charge of the kids. Also, Sheldon finds a book on experimenting on kids, and the guys plus Amy make a day of it. Teleplay by Steve Holland & Maria Ferrari & Jeremy Howe
273	18	The Laureate Accumulation	Steve Holland & Adam Faberman & David Saltzberg	Mark Cendrowski	April 4, 2019	12.218M	2%	T12.16018
When competitors Pemberton and Campbell charm America on a publicity tour, Sheldon and Amy try to bring Nobel laureates Kip Thorne, George Smoot and Frances Arnold to their side. Also, Halley's fear of the dark leads to opportunity and conflict for Howard, Bernadette and Stuart. Teleplay by Dave Goetsch & Eric Kaplan & Maria Ferrari
274	19	The Inspiration Deprivation	Eric Kaplan & Maria Ferrari & Andy Gordon	Mark Cendrowski	April 18, 2019	11.437M	1.9%	T12.16019
The concept of what it would mean for women everywhere if Amy were to win a Nobel Prize causes Amy to have a meltdown. Also, Koothrappali and Wolowitz try to relive the good old days after Wolowitz buys a scooter that looks like the one he had years ago. Teleplay by Steve Holland & Anthony Del Broccolo & Tara Hernandez
275	20	The Decision Reverberation	Steven Molaro & Steve Holland & Tara Hernandez	Mark Cendrowski	April 25, 2019	11.841M	1.8%	T12.16020
Koothrappali is worried people won't take him seriously in his own field after publishing a paper that suggests he may have discovered alien life. Also, Leonard wants to be the principal investigator on a plasma physics study. Teleplay by Eric Kaplan & Maria Ferrari & Jeremy Howe
276	21	The Plagiarism Schism	Eric Kaplan & Maria Ferrari & Adam Faberman	Nikki Lorre	May 2, 2019	12.479M	1.9%	T12.16021
Kripke has proof that Dr. Pemberton plagiarized his thesis in college, and Sheldon and Amy aren't sure if they should turn him in or not. Also, Wolowitz is happily surprised to learn that Bernadette wasn't the only waitress at the Cheesecake Factory who had a crush on him back in the day. Teleplay by Steve Holland & Dave Goetsch & Tara Hernandez
277	22	The Maternal Conclusion	Steve Holland & Eric Kaplan & Jeremy Howe	Kristy Cecil	May 9, 2019	12.585M	2%	T12.16022
Leonard is pleasantly surprised when Beverly comes to visit and she's genuinely kind to him, until he finds out the real reason she's there. Also, Denise and Stuart overstay their welcome at the Wolowitz house. Teleplay by Maria Ferrari & Andy Gordon & Anthony Del Broccolo
278	23	The Change Constant	Chuck Lorre & Steve Holland & Steven Molaro & Bill Prady & Dave Goetsch & Eric Kaplan & Maria Ferrari & Andy Gordon & Anthony Del Broccolo & Tara Hernandez & Jeremy Howe & Adam Faberman	Mark Cendrowski	May 16, 2019	18.517M	3.2%	T12.16023
Sheldon and Amy await big news.
279	24	The Stockholm Syndrome	Chuck Lorre & Steve Holland & Steven Molaro & Bill Prady & Dave Goetsch & Eric Kaplan & Maria Ferrari & Andy Gordon & Anthony Del Broccolo & Tara Hernandez & Jeremy Howe & Adam Faberman	Mark Cendrowski	May 16, 2019	18.517M	3.2%	T12.16024
Bernadette and Wolowitz leave their kids for the first time; Penny and Leonard try to keep a secret; Sheldon and Amy stick together; and Koothrappali makes a new friend, as the gang travels together into an uncharted future.
SP	SP	Unraveling the Mystery: A Big Bang Farewell	Chuck Lorre & Steven Molaro & Steve Holland	Chuck Lorre	May 16, 2019	11.605M	1.7%	T12.16026