The Big Bang Theory (TV Series 2007– ) Poster

(2007– )

Episode List

Next Episode (airs 23 Oct. 2017)

The Collaboration Contamination

Amy and Howard work in the lab together causing Sheldon, Bernadette and Raj to feel jealous and lonely. Penny and Leonard use a parenting book to control Sheldon's behavior.

Current Episode (aired 16 Oct. 2017)

The Explosion Implosion

Leonard is devastated by the new friendly relation developing between his mother and Penny. Meanwhile Sheldon takes a detour with Raj and Howard to explore the old belongings of Howard's Science Models.


12 Jan. 2009
The Killer Robot Instability
Howard becomes depressed after Penny makes a cruel statement about his love life, while the rest of the guys prepare for a grudge killer robot duel against an obnoxious colleague at the university.
19 Jan. 2009
The Friendship Algorithm
Sheldon tries to make friends with Kripke in the hope that it will get him access to a coveted computer at the university.
2 Mar. 2009
The Financial Permeability
Leonard and Sheldon try to help out Penny when she can't afford to pay her rent.
9 Feb. 2009
The Maternal Capacitance
Sheldon hits it off with Leonard's psychoanalyst mother, but she drives Leonard and Penny to the bottle.
2 May 2009
The Cushion Saturation
Howard hooks up with Leslie, while Penny accidentally ruins Sheldon's spot on the couch.
9 Mar. 2009
The Terminator Decoupling
On a train to San Francisco, Howard, Raj and Leonard fight for the affections of sci-fi star Summer Glau, while Sheldon is forced to turn to Penny for help when he leaves his flash drive behind.
16 Mar. 2009
The Work Song Nanocluster
Sheldon's assistance with Penny's home-based business leads to disaster.
30 Mar. 2009
The Dead Hooker Juxtaposition
Penny becomes jealous when a gorgeous new neighbor attracts the guys' attention.
13 Apr. 2009
The Hofstadter Isotope
Leonard is so upset when a friend from the comic book store begins dating Penny that he convinces Howard and Raj to take him to a bar so that he can pick up a woman of his own.
27 Apr. 2009
The Vegas Renormalization
After being dumped by Leslie, Howard heads to Las Vegas with Leonard and Raj. Meanwhile, Penny is forced to take in Sheldon after he locks himself out of his apartment.
4 May 2009
The Classified Materials Turbulence
Penny's second date with Stuart has significant implications for Leonard. Howard enlists the guys' help with one of his NASA projects.
11 May 2009
The Monopolar Expedition
Penny gets upset when she finds out Leonard and the guys plan to work at the North Pole for the summer.
21 Sep. 2009
The Electric Can Opener Fluctuation
After returning from the North Pole, a conflict among the guys sends Sheldon back to Texas and interferes with Leonard's reunion with Penny.
28 Sep. 2009
The Jiminy Conjecture
Leonard and Penny's first night together goes awkwardly. Sheldon and Howard wager on the species of a cricket.
5 Oct. 2009
The Gothowitz Deviation
Sheldon attempts to covertly alter Penny's habits, while Howard and Raj try their luck meeting women at a Goth-style club.
12 Oct. 2009
The Pirate Solution
When Raj has to find a new job or be sent back to India, Sheldon's solution leaves Leonard and Penny dealing with Howard as the third wheel.
19 Oct. 2009
The Creepy Candy Coating Corollary
Leonard is forced to ask Penny to set Howard up with one of her friends, while Sheldon seeks payback against sci-fi star Wil Wheaton.
2 Nov. 2009
The Cornhusker Vortex
Leonard tries to learn about football to fit in with Penny's friends. Meanwhile, a loss in a kite war threatens to end Raj and Howard's friendship.
9 Nov. 2009
The Guitarist Amplification
Sheldon is caught in the middle when Leonard and Penny argue about Penny's friend staying at her apartment.
16 Nov. 2009
The Adhesive Duck Deficiency
Penny is forced to turn to Sheldon for help when she dislocates her shoulder in the bathtub. Meanwhile, the rest of the guys accidentally get stoned in the desert while waiting for a meteor shower.
23 Nov. 2009
The Vengeance Formulation
Sheldon plans revenge after Kripke humiliates him on the radio. Howard develops doubts about his relationship with Bernadette.
7 Dec. 2009
The Gorilla Experiment
Sheldon attempts to help Penny understand physics to impress Leonard, while Howard becomes jealous when Bernadette takes an interest in Leonard's research.
14 Dec. 2009
The Maternal Congruence
Leonard's mother makes a visit to his dismay and Sheldon's delight.

« 2008 |  2009  2010  »

See also

Episode Cast | Rated Episodes (by date / vote)| TV Schedule

Contribute to This Page