The Big Bang Theory Episode Listings

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The Big Bang Theory Season 3

EpisodeTitleDescriptionRecent Activity
Nov 2 2009
The Cornhusker VortexLeonard gets tutored in understanding football by Sheldon, while a kite mishap puts a rift between Wolowitz and Raj.118 ratings | 7 discussion topics
Oct 19 2009
The Creepy Candy Coating CorollarySheldon squares off against the the one actor from the Star Trek universe he holds enmity towards: Wil Wheaton. Wolowitz wants Penny to set him up with a friend of hers.161 ratings | 7 discussion topics
Oct 12 2009
The Pirate SolutionFacing a return to India, Raj needs a job desperately enough to consider working for Sheldon. Meanwhile, Howard becomes a third wheel to Leonard and Penny.37 ratings | 7 discussion topics
Oct 5 2009
The Gothowitz DeviationHoward takes Raj along to check out the Goth dating scene. Sheldon uses chocolate as part of a behavior modification experiment on Penny.193 ratings | 7 discussion topics
Sep 28 2009
The Jiminy ConjectureSheldon and Howard wager comic books over a cricket's species. Meanwhile, a less-than-perfect romantic night agonizes Leonard and Penny.129 ratings | 7 discussion topics
Sep 21 2009
The Electric Can Opener FluctuationDiscovering that Leonard, Raj, and Howard fudged the results of his Arctic research expedition, a disgraced Sheldon heads home to Texas.220 ratings | 7 discussion topics

The Big Bang Theory Season 2

EpisodeTitleDescriptionRecent Activity
May 11 2009
The Monopolar ExpeditionThe guys' plan to work over the summer at the North Pole makes Penny revaluate her feelings for Leonard.215 ratings | 25 discussion topics | 1 wall post
May 4 2009
The Classified Materials TurbulenceLeonard is torn between being honest or self-serving when Stuart asks his advice for an upcoming second date with Penny. Wolowitz realizes there's a crucial error in a toilet he designed for the ...moreLeonard is torn between being honest or self-serving when Stuart asks his advice for an upcoming second date with Penny. Wolowitz realizes there's a crucial error in a toilet he designed for the International Space Station. 115 ratings | 25 discussion topics
Apr 27 2009
The Vegas RenormalizationLeonard and Raj take Wolowitz to Las Vegas to help him get over his break-up with Leslie. Sheldon, home alone and looking forward to it, locks himself out and has only one other place to stay—Penny'...moreLeonard and Raj take Wolowitz to Las Vegas to help him get over his break-up with Leslie. Sheldon, home alone and looking forward to it, locks himself out and has only one other place to stay—Penny's. 103 ratings | 25 discussion topics | 9 wall posts
Apr 13 2009
The Hofstadter IsotopeA fellow comic book enthusiast's hitting on Penny leads to Leonard and Howard going to a bar's Ladies' Night.94 ratings | 25 discussion topics | 2 wall posts
Mar 30 2009
The Dead Hooker JuxtapositionPenny feels threatened when another sexy woman moves into the apartment building.91 ratings | 25 discussion topics | 3 wall posts
Mar 16 2009
The Work Song NanoclusterPenny's hair product business gets out of control when Sheldon takes charge.88 ratings | 25 discussion topics
Mar 9 2009
The Terminator DecouplingThe boys discover that the star of Terminator:The Sarah Connor Chronicles is on their train to San Francisco.67 ratings | 25 discussion topics
Mar 2 2009
The Cushion SaturationSheldon and Penny get in a fight over paintball.80 ratings | 25 discussion topics
Feb 9 2009
The Maternal CapacitanceLeonard's mother, who is remarkably similar to Sheldon, comes to town.204 ratings | 25 discussion topics | 16 wall posts
Feb 2 2009
The Financial PermeabilityWhen Penny runs into financial trouble, Sheldon loans her money... but Penny tries so hard to pay him back that other problems start coming up.147 ratings | 25 discussion topics | 10 wall posts
Jan 19 2009
The Friendship AlgorithmSheldon devlops a new way to make friends.169 ratings | 25 discussion topics | 16 wall posts
Jan 12 2009
The Killer Robot InstabilityPenny wounds Wolowitz with a comment about his love life, prompting him to abandon friends who need him for a fighting-robot contest.185 ratings | 25 discussion topics | 16 wall posts
Dec 15 2008
The Bath Item Gift HypothesisLeonard becomes stressed as Christmas approaches. He is jealous of his colleague who starts dating Penny and is annoyed by Sheldon's strict rules for gift-giving.199 ratings | 25 discussion topics | 8 wall posts
Dec 8 2008
The Vartabedian ConundrumLeonard is the last to realize that Stephanie has moved in with him.56 ratings | 25 discussion topics | 1 wall post
Nov 24 2008
The White Asparagus TriangulationSheldon is ecstatic when Leonard begins dating Stephanie (Sara Rue), who meets all of Sheldon's seemingly impossible standards.79 ratings | 25 discussion topics
Nov 17 2008
The Lizard-Spock ExpansionA smitten Wolowitz thinks he's found his soul mate---until the woman (Sara Rue) meets Leonard.79 ratings | 25 discussion topics
Nov 10 2008
The Panty Pinata PolarizationPenny finally gets fed up with all of Sheldon's rules, and after getting "banished" from their apartment, the two use some quite creative 'battle tactics'.80 ratings | 25 discussion topics
Nov 3 2008
The Cooper-Nowitzki TheoremEveryone is confused when a young grad student is attracted to Sheldon.73 ratings | 25 discussion topics | 2 wall posts
Oct 20 2008
The Euclid AlternativeThe gang have an intervention to deal with Sheldon's fear of driving.88 ratings | 25 discussion topics | 1 wall post
Oct 13 2008
The Griffin EquivalencyAfter getting honoured by People magazine as one of their Top 20 under 20 to watch, Raj tries to hit on Penny.71 ratings | 25 discussion topics | 8 wall posts
Oct 6 2008
The Barbarian SublimationPenny slowly becomes obsessed with online gaming in Age of Conan.78 ratings | 25 discussion topics | 2 wall posts
Sep 29 2008
The Codpiece TopologyLeonard goes back to Leslie after seeing Penny with another man.67 ratings | 25 discussion topics | 1 wall post
Sep 22 2008
The Bad Fish ParadigmPenny went on a not so great date with Leonard and opens up to Sheldon.83 ratings | 25 discussion topics | 4 wall posts

The Big Bang Theory Season 1

EpisodeTitleDescriptionRecent Activity
May 19 2008
The Tangerine FactorAfter Penny breaks up with her new guy, she agrees to go out on a date with Leonard. However, both of them have reservations about the date soon after agreeing to it.126 ratings
May 12 2008
The Peanut ReactionWhen Penny and the guys learn that Leonard has never had a birthday party, they decide to try and throw a surprise party for them.47 ratings
May 5 2008
The Pork Chop IndeterminacySheldons sexy twin sister arrives in town from Texas, and all of Sheldons friends fight over who will get to be with her.47 ratings
Apr 28 2008
The Nerdvana AnnihilationPenny gets mad at Leonard because the guys new time machine causes her to miss work. Leonard is so devastated that he vows to give up all of his nerd memorabilia.42 ratings
Apr 21 2008
The Bat Jar ConjectureSheldon becomes so intent on demonstrating his intellectual superiority over his Physics Bowl teammates that they boot him, and replace him with his nemesis.35 ratings
Apr 14 2008
The Jerusalem DualitySheldon is threatened when a new 15-year-old prodigy who is smarter than him joins the lab, so the guys come up with a plan to get rid of him.45 ratings
Mar 31 2008
The Pancake Batter AnomalySheldon is sick, and Leonard and the guys sneak out to a Planet of the Apes movie marathon to get out of taking care of him--which leaves Penny as the only person to whom the needy Sheldon can turn.46 ratings
Mar 24 2008
The Loobenfeld DecayLeonard lies to Penny so that he and Sheldon can get out of watching her perform. However, Sheldon believes that the lie has too many loose ends, so he comes up with a new, unnecessarily complex one ...moreLeonard lies to Penny so that he and Sheldon can get out of watching her perform. However, Sheldon believes that the lie has too many loose ends, so he comes up with a new, unnecessarily complex one to replace it. 46 ratings
Mar 17 2008
The Cooper-Hofstadter PolarizationLeonard and Sheldon's friendship is put to the test when Leonard wants to present a paper they co-authored at a physics convention, but Sheldon does not.37 ratings
Nov 12 2007
The Grasshopper ExperimentRajesh's parents, communicating from India by Web cam, arrange for him to go out with another Indian woman in the hopes of marriage... but his date turns out to have more in common with Sheldon.48 ratings
Nov 5 2007
The Dumpling ParadoxWhen Howard hooks up with Pennys old friend, it ruins the nights on which all of the guys play the game Halo.45 ratings
Oct 29 2007
The Middle Earth ParadigmThe guys are invited to Pennys Halloween costume party. During the party, Leonard has a run-in with Pennys ex-boyfriend.50 ratings
Oct 22 2007
The Hamburger PostulateLeonard and his colleague Leslie spend the night together. But Leslie tells Leonard after the fact that shes only interested in a one-night stand.45 ratings
Oct 15 2007
The Luminous Fish EffectSheldons Christian-fundamentalist mother visits to get him out of the funk hes in after he is fired for being disrespectful toward his new boss.43 ratings
Oct 8 2007
The Fuzzy Boots CorollaryLeonard gets upset when he discovers that Penny is seeing a new guy, so he tries to trick her into going on a date with him.45 ratings
Oct 1 2007
The Big Bran HypothesisPenny is furious and more than a little freaked out with Leonard and Sheldon when they sneak into her apartment overnight, and clean it while she is sleeping.51 ratings
Sep 24 2007
PilotA pair of brilliant theoretical physicists meet a woman who shows them how little they know about the real world.57 ratings
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About The Big Bang Theory Episodes
Watch, rate, and review the latest episode of The Big Bang Theory. Watch videos of your favorite The Big Bang Theory characters and actors including Leonard Hofstadter (Johnny Galecki), Sheldon Cooper (Jim Parsons), Howard Wolowitz (Simon Helberg), Rajesh Koothrappali (Kunal Nayyar), and Penny (Kaley Cuoco).
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