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Season 2 – The Big Bang Theory

Play trailer Poster for Season 2 – The Big Bang Theory Sep 2008 Comedy Play Trailer Watchlist
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100% Tomatometer 8 Reviews 92% Popcornmeter 500+ Ratings
Mensa-fied best friends and roommates Leonard and Sheldon, physicists who work at the California Institute of Technology, may be able to tell everybody more than they want to know about quantum physics, but getting through most basic social situations, especially ones involving women, totally baffles them. How lucky, then, that babe-alicious waitress/aspiring actress Penny moves in next door. Frequently seen hanging out with Leonard and Sheldon are friends and fellow Caltech scientists Wolowitz and Koothrappali. Will worlds collide? Does Einstein theorize in the woods?
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The Big Bang Theory — Season 2

Critics Reviews

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John Jurgensen Wall Street Journal Sep 27, 2013
Sheldon is the main engine for the show's geek dynamic. Go to Full Review Ken Tucker Entertainment Weekly Sep 27, 2013
B+
Prickly Sheldon has become a character to love, and Parsons is doing something rare on network TV: making intellectualism admirable, even heroic. Go to Full Review Brian Lowry Variety Sep 12, 2013
Frankly, any show that weaves in multiple jokes about Comic-Con and employs its own science consultant can't be all bad. Go to Full Review Ross Ruediger Bullz-Eye.com Apr 3, 2020
5/5
It may sound like hyperbole, but surely Sheldon Cooper is one of, if not the most side-splittingly riotous character that network TV has seen in many a year. Go to Full Review Rob Owen Pittsburgh Post-Gazette Sep 27, 2013
Big Bang has evolved beyond its simple premise. Go to Full Review Jessica Paff Zap2it.com Sep 27, 2013
If they can keep the funny coming, I will keep watching. Go to Full Review Read all reviews

Audience Reviews

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matthias S @Thescreenasvor Jul 11, 2026 Season 2 of The Big Bang Theory keeps the same level of quality as the first season, and I’d give it another solid 75%. The comedy remains consistent, with plenty of fun geek references and enjoyable character moments. What stands out more this time is that the characters get more fleshed out, giving the show more potential and allowing the world around them to grow. It feels like the series is becoming more comfortable with its identity and finding its rhythm. While it’s not a huge step up, it’s a satisfying continuation that makes me interested to see where the next seasons go. See more Eric S. @RT63786740 Jun 19, 2026 Sheldon’s reaction to the signed Napkin is probably the greatest moment ever!😂😂 See more Evan V. @Evan-Vaughan_Offical May 24, 2026 Season two vastly improves over the original in many ways; it is arguably more funny, has more interesting plot lines, and the cast continues to excel as one consecutive unit. See more Michael A @Tomato547 Dec 18, 2025 This show is really, really funny with great actors like Jim Parsons and Johnny Galecki. But I'd say the later seasons like 5,6,7,8 and 9 are a bit better. But I recommend watching season 2 if you've watched season 1. See more Alexander K @Movienerd67 Dec 12, 2025 I LOVE THIS SHOW!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 1000000000000000000000/10 See more Daniel M @DanyBoy02 Nov 24, 2025 Absolutamente perfeito! See more Read all reviews
The Big Bang Theory — Season 2

My Rating

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Cast & Crew

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Johnny Galecki

Leonard Hofstadter

Jim Parsons

Sheldon Cooper

Kaley Cuoco

Penny

Simon Helberg

Howard Wolowitz

Kunal Nayyar

Raj Koothrappali

Sara Gilbert

Leslie Winkle

Episodes

Episode 1 Aired Sep 22, 2008 The Bad Fish Paradigm Penny's first date with Leonard goes awry; Penny finds Sheldon to be an unwilling confidant. Details Episode 2 Aired Sep 29, 2008 The Codpiece Topology After seeing Penny with a handsome new guy, Leonard rushes into a rebound relationship with Sheldon's nemesis, Leslie Winkle. Details Episode 3 Aired Oct 6, 2008 The Barbarian Sublimation Sheldon creates a monster when he introduces Penny to online gaming. Details Episode 4 Aired Oct 13, 2008 The Griffin Equivalency Raj gets an inflated ego and makes a play for Penny after being referenced in a magazine article. Details Episode 5 Aired Oct 20, 2008 The Euclid Alternative Leonard and his friends stage an intervention to force Sheldon to face his fear of driving. Details Episode 6 Aired Nov 3, 2008 The Cooper-Nowitzki Theorem Sheldon and the gang are confused when a young grad student is attracted to him. Details Episode 7 Aired Nov 10, 2008 The Panty Piñata Polarization When Sheldon bans Penny from the apartment for a series of petty infractions, Penny vows to get revenge. Details Episode 8 Aired Nov 17, 2008 The Lizard-Spock Expansion Leonard inadvertently steals away the new woman Wolowitz thinks is the love of his life. Details Episode 9 Aired Nov 24, 2008 The White Asparagus Triangulation Sheldon is thrilled when Leonard starts dating a woman who meets Sheldon's stringent standards. Details Episode 10 Aired Dec 8, 2008 The Vartabedian Conundrum Leonard asks Penny for advice when his new relationship starts moving too fast. Details Episode 11 Aired Dec 15, 2008 The Bath Item Gift Hypothesis Penny starts dating Leonard's handsome colleague; Leonard and his friends are tortured by Sheldon's obsession with gift-giving etiquette. Details Episode 12 Aired Jan 12, 2009 The Killer Robot Instability When Penny's comment about Wolowitz's love life sends him into a depressed stupor, his friends lose their most important teammate in an upcoming fighting-robot competition. Details Episode 13 Aired Jan 19, 2009 The Friendship Algorithm Sheldon develops a scientific procedure for making friends; Kripke controls a new supercomputer. Details Episode 14 Aired Feb 2, 2009 The Financial Permeability Sheldon's solution to Penny's financial difficulty leads to a confrontation between Leonard and Penny's ex-boyfriend. Details Episode 15 Aired Feb 9, 2009 The Maternal Capacitance Leonard and Penny are drawn together after a disastrous visit from Leonard's mother (Christine Baranski). Details Episode 16 Aired Mar 2, 2009 The Cushion Saturation A paintball game leads to a fight between Sheldon and Penny, and romance for Leslie and Wolowitz. Details Episode 17 Aired Mar 9, 2009 The Terminator Decoupling Leonard, Sheldon and Wolowitz are ecstatic to learn that a famous science-fiction actress (Summer Glau) is aboard the train they are taking to San Francisco. Details Episode 18 Aired Mar 16, 2009 The Work Song Nanocluster Penny's home business turns into a complete nightmare when Sheldon takes over. Details Episode 19 Aired Mar 30, 2009 The Dead Hooker Juxtaposition Penny develops a rivalry with a sexy new female neighbor who threatens her position as queen bee of the building. Details Episode 20 Aired Apr 13, 2009 The Hofstadter Isotope Wolowitz and Leonard decide to check out a local bar on Ladies' Night. Details Episode 21 Aired Apr 27, 2009 The Vegas Renormalization Koothrappali and Leonard take Wolowitz to Las Vegas; Sheldon is forced to bunk with Penny when he gets locked out of his apartment. Details Episode 22 Aired May 4, 2009 The Classified Materials Turbulence Penny makes a surprising revelation about Leonard while on her date with Stuart; Wolowitz finds a critical design flaw in his NASA project. Details Episode 23 Aired May 11, 2009 The Monopolar Expedition While Leonard prepares for a three-month science expedition, he and Penny re-evaluate their feelings for each other. Details

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The Big Bang Theory — Season 2

The Big Bang Theory http://farm9.staticflickr.com/8421/7490615186_07fc7f571f_b.jpg View more photos

Season Info

Director
Mark Cendrowski
Executive Producer
Chuck Lorre, Bill Prady, David Goetsch, Eric Kaplan
Screenwriter
Bill Prady, Chuck Lorre, David Goetsch, Daley Haggar, Steven Molaro, Lee Aronsohn, Stephen Engel, Eric Kaplan, Richard Rosenstock, Tim Doyle
Network
CBS
Rating
TV-PG (L)
Genre
Comedy
Original Language
English
Release Date
Sep 22, 2008
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