Season 2 Breakdown

Normal Episodes: 23
TV Specials: 0
TV Movies: 0

The Big Bang Theory Season 2 (2008-2009)

The Big Bang Theory The Bad Fish Paradigm 2x01 The Bad Fish Paradigm
Penny and Leonard go on a date, but when their night out goes awry, Penny finds a friend in Sheldon.
Sep. 22, 2008
The Big Bang Theory The Codpiece Topology 2x02 The Codpiece Topology
Leonard begins dating Sheldon's nemesis, Leslie Winkle, after seeing Penny with a handsome new guy.
Sep. 29, 2008
The Big Bang Theory The Barbarian Sublimination 2x03 The Barbarian Sublimination
Penny is introduced to online gaming by Sheldon, and she quickly becomes addicted.
Oct. 06, 2008
The Big Bang Theory The Griffin Equivalency 2x04 The Griffin Equivalency
Raj gets a swelled head and goes after Leonard's new crush, Penny, after being made famous in a magazine article leading to a disastrous result.
Oct. 13, 2008
The Big Bang Theory The Euclid Alternative 2x05 The Euclid Alternative
Leonard and his friends want to help Sheldon overcome his fear of driving with an intervention.
Oct. 20, 2008
The Big Bang Theory The Cooper-Nowitzki Theorem 2x06 The Cooper-Nowitzki Theorem
Sheldon, as well as the others, are baffled when a young grad student begins to fall for him.
Nov. 03, 2008
The Big Bang Theory The Panty Pinata Polarization 2x07 The Panty Pinata Polarization
When Penny's cable gets cut, she starts coming over to the guys' apartment to watch America's Next Top Model. However, Sheldon bans her from the apartment for a series of petty infractions, ...
Nov. 10, 2008
The Big Bang Theory The Lizard-Spock Expansion 2x08 The Lizard-Spock Expansion
Has a smitten Wolowitz found the love of his life, he thinks so until she meets Leonard.
Nov. 17, 2008
The Big Bang Theory The White Asparagus Triangulation 2x09 The White Asparagus Triangulation
Sheldon puts all his efforts to make Leonard's relationship with Stephanie, work.
Nov. 24, 2008
The Big Bang Theory The Vartabedian Conundrum 2x10 The Vartabedian Conundrum
Leonard ask for advice from Penny when his relationship with Stephanie begins moving too fast for him.
Dec. 08, 2008
The Big Bang Theory The Bath Item Gift Hypothesis 2x11 The Bath Item Gift Hypothesis
Leonard finds no comfort and joy at Christmas time, as his colleague begins dating Penny. Meanwhile, Sheldon's adherence to gift-giving etiquette is driving everyone nuts.
Dec. 15, 2008
The Big Bang Theory The Killer Robot Instability 2x12 The Killer Robot Instability
Wolowitz leaves his friends in a bind when he drops out of an upcoming robot competition after becoming depressed when due to Penny's comment on his love life.
Jan. 12, 2009
The Big Bang Theory The Friendship Algorithm 2x13 The Friendship Algorithm
The boys discover a conundrum which is baffling: The very source of Sheldon's social awkwardness seems to be his intelligence, is also the reason according to his new scientific procedure ...
Jan. 19, 2009
The Big Bang Theory The Financial Permeability 2x14 The Financial Permeability
Penny receives help from Sheldon over her financial crisis, but causes Penny's burly ex-boyfriend, Kurt, to have a confrontation with Sheldon.
Feb. 02, 2009
The Big Bang Theory The Maternal Capacitance 2x15 The Maternal Capacitance
Penny and Leonard turn to each other and tequila for comfort after suffering a dreadful visit from his mother.
Feb. 09, 2009
The Big Bang Theory The Cushion Saturation 2x16 The Cushion Saturation
A paintball game sparks a fight between Penny and Sheldon, and leads to romance for Wolowitz and Leslie.
Mar. 02, 2009
The Big Bang Theory The Terminator Decoupling 2x17 The Terminator Decoupling
Leonard, Sheldon, Wolowitz and Raj take a train trip to San Francisco and can hardly believe beautiful sci-fi actress Summer Glau is onboard.
Mar. 09, 2009
The Big Bang Theory The Work Song Nanocluster 2x18 The Work Song Nanocluster
When Penny's friends, especially Sheldon, get involved in her new hair product business, it quickly suffers.
Mar. 16, 2009
The Big Bang Theory The Dead Hooker Juxtaposition 2x19 The Dead Hooker Juxtaposition
Penny squares off with a new beautiful female neighbor who may become the building's "new Penny."
Mar. 30, 2009
The Big Bang Theory The Hofstadter Isotope 2x20 The Hofstadter Isotope
While at a comic book store, Penny is romanced by a friend of the guys'. Meanwhile, Leonard and Wolowitz head to a bar for ladies night in hope of finding women.
Apr. 13, 2009
The Big Bang Theory The Vegas Renormalization 2x21 The Vegas Renormalization
Leonard and Koothrappali escort a heartbroken Wolowitz to Las Vegas, and Sheldon becomes locked out of his apartment and must stay with Penny.
Apr. 27, 2009
The Big Bang Theory The Classified Materials Turbulence 2x22 The Classified Materials Turbulence
Penny makes an unexpected discovery concerning Leonard, while on a date with Stuart. Meanwhile, a design flaw in his NASA project finds Wolowitz needing some help from his friends. ...
May. 04, 2009
The Big Bang Theory The Monopolar Expedition 2x23 The Monopolar Expedition
Leonard packs his bags for a three-month long science trip, and he and Penny talk about their feelings for each other in the second-season finale.
May. 11, 2009
Season Guides
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Season 2 Characters

Leonard Hofstadter played by Johnny Galecki
Sheldon Cooper played by Jim Parsons (II)
Penny played by Kaley Cuoco
Howard Wolowitz played by Simon Helberg
Raj Koothrappali played by Kunal Nayyar
Mrs. Wolowitz voiced by Carol Ann Susi
Leslie Winkle played by Sara Gilbert
Stephanie Barnett played by Sara Rue
Stuart played by Kevin Sussman
Dr. V. M. Koothrappali played by Brian George
Barry Kripke played by John Ross Bowie
Dr. Eric Gablehauser played by Mark Harelik
Mrs. Koothrappali played by Alice Amter
Club Patron played by Chris Krauser
Mikayla played by Jodi Lyn O'Keefe
Dr. David Underhill played by Michael Trucco
Charlie Sheen played by Charlie Sheen
Octavia played by Octavia Spencer
Summer Glau played by Summer Glau
Kurt played by Brian Patrick Wade
Beverly Hofstadter played by Christine Baranski
Charlotte played by Michael Hyatt (II)
Analeigh played by Analeigh Tipton

[More Cast]


Season 2 Videos

Penny and Howard's Tango
Penny and Howard's Tango (00:31)

Sheldon in Exile
Sheldon in Exile (00:55)

Sheldon's Intervention
Sheldon's Intervention (01:13)

Stephanie Meets Penny
Stephanie Meets Penny (01:02)

[More Videos]

Season 2 Quotes

02x05 - The Euclid Alternative Season 2 / Episode 5: - The Euclid Alternative

Leonard Hofstadter: Didn't I tell you I'd be working nights and that you'd have to make other arrangements?
Sheldon Cooper: You did.
Leonard Hofstadter: And?
Sheldon Cooper: I didn't.
02x13 - The Friendship Algorithm Season 2 / Episode 13: - The Friendship Algorithm

Howard Wolowitz: [after Kripke hits on Penny] Suddenly, I'm looking pretty good, huh?
[More Quotes]

Season 2 Trivia

  • Episode 08 - When Howard is leaving Stephanie a message the second time, he tells her to claim she's half Jewish "On her mother's side". This is because, unlike in Christianity and Islam which are paternal, Judaism is maternal.
  • Episode 12 - The title refers to the robots that were built for a battle to the death.
  • Episode 06 - SPOILER: the climax of this episode is based on an old joke. In one version, there is a scriptwriter whose scripts are awful and have all been rejected. He is visited by a magical elf. The elf offers to rewrite everything the scriptwriter produces so that it would be an instant hit. The elf also says he would do t
  • Episode 08 - The title refers to the two new playing options that Sheldon proposes for Rock-Paper-Scissors.
  • Episode 03 - In an attempt to set Penny up on a date, Sheldon inadvertently seduces a gay man in the college cafeteria. Jim Parsons is openly gay in real life.

[More Trivia]


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