The Big Bang Theory: Season 2

2008 · 23 episodes · ★ 7.6

What Season 2 of The Big Bang Theory

After a failed date with Leonard, Penny confides in Sheldon, who has no interest in playing confidant. Leonard is still hung up on her and has to watch his relationship with the neighbor grow closer. Meanwhile, Penny tries to get her hair accessories business off the ground, and Sheldon faces his fear of driving, since Leonard can no longer drive him to work. Raj becomes insufferably cocky after appearing in a magazine, and Howard gets depressed over a comment Penny makes about his love life. Leonard, out of spite, goes back to Leslie, and that adds tension to the group.

23episodes

Sep 22, 2008premiered

May 11, 2009latest episode

8 hrtotal runtime

Season 2 Episodes

2x01 The Bad Fish Paradigm
Sep 22, 2008 · 22 min · ★ 7.9
Penny's first date with Leonard goes awry; Penny finds Sheldon to be an unwilling confidant.
Directing: Mark Cendrowski · Writing: Steven Molaro, David Goetsch · Starring: Carol Ann Susi
2x02 The Codpiece Topology
Sep 29, 2008 · 21 min · ★ 7.7
A jealous Leonard reacts to Penny's new guy by rebounding with Leslie.
Directing: Mark Cendrowski · Writing: Bill Prady, Lee Aronsohn · Starring: Sara Gilbert, Travis Schuldt
2x03 The Barbarian Sublimation
Oct 6, 2008 · 21 min · ★ 8.0
Sheldon creates a monster when he introduces Penny to online gaming.
Directing: Mark Cendrowski · Writing: Steven Molaro, Eric Kaplan · Starring: Sara Gilbert, Mark Harelik, Tyler Jon Olson, Mark Hames
2x04 The Griffin Equivalency
Oct 13, 2008 · 21 min · ★ 7.6
Raj gets an inflated ego and makes a play for Penny after being referenced in a magazine article.
Directing: Mark Cendrowski · Writing: Tim Doyle, Stephen Engel · Starring: Alice Amter, Brian George, Mark Harelik, Charlie Sheen
2x05 The Euclid Alternative
Oct 20, 2008 · 20 min · ★ 7.6
Leonard and his friends stage an intervention to force Sheldon to face his fear of driving.
Directing: Mark Cendrowski · Writing: David Goetsch, Lee Aronsohn · Starring: Octavia Spencer, Elena Campbell-Martinez, Livia Treviño
2x06 The Cooper-Nowitzki Theorem
Nov 3, 2008 · 21 min · ★ 7.9
Sheldon and the gang are confused when a young grad student is attracted to him.
Directing: Mark Cendrowski · Writing: Richard A. Rosenstock, Tim Doyle · Starring: Sara Gilbert, Riki Lindhome, Emily Happe
2x07 The Panty Piñata Polarization
Nov 10, 2008 · 21 min · ★ 8.0
When Sheldon bans Penny from the apartment for numerous minor infractions, she decides to retaliate.
Directing: Mark Cendrowski · Writing: Steven Molaro, Jennifer Glickman · Starring: Lio Tipton, Samantha Potter
2x08 The Lizard-Spock Expansion
Nov 17, 2008 · 20 min · ★ 7.5
Leonard inadvertently steals away the new woman Wolowitz thinks is the love of his life.
Directing: Mark Cendrowski · Writing: David Goetsch, Jennifer Glickman · Starring: Carol Ann Susi, Robert Clotworthy, Sara Rue, Jennifer Hale
2x09 The White Asparagus Triangulation
Nov 24, 2008 · 21 min · ★ 7.5
Sheldon is thrilled when Leonard starts dating a woman who meets Sheldon's stringent standards.
Directing: Mark Cendrowski · Writing: Richard A. Rosenstock, Stephen Engel · Starring: Sara Rue
2x10 The Vartabedian Conundrum
Dec 8, 2008 · 21 min · ★ 7.0
Leonard asks Penny for advice when his new relationship starts moving too fast.
Directing: Mark Cendrowski · Writing: Bill Prady, Richard A. Rosenstock · Starring: Sara Rue
2x11 The Bath Item Gift Hypothesis Mid-Season Finale
Dec 15, 2008 · 21 min · ★ 8.3
Penny starts dating Leonard's handsome colleague; Leonard and his friends are tortured by Sheldon's obsession with gift-giving etiquette.
Directing: Mark Cendrowski · Writing: Eric Kaplan, Stephen Engel · Starring: Michael Trucco, Michael Hyatt
2x12 The Killer Robot Instability
Jan 12, 2009 · 21 min · ★ 7.5
Penny's criticism of Wolowitz's romantic life pushes him into depression and AWOL for a fighting robot battle the rest of guys are depending on him for.
Directing: Mark Cendrowski · Writing: Steven Molaro, Daley Haggar · Starring: John Ross Bowie, Carol Ann Susi
2x13 The Friendship Algorithm
Jan 19, 2009 · 21 min · ★ 7.5
Sheldon creates a scientific procedure for making friends.
Directing: Mark Cendrowski · Writing: Steven Molaro, Chuck Lorre · Starring: John Ross Bowie, Will Deutsch, Jane Galloway Heitz, Jade Zdanow
2x14 The Financial Permeability
Feb 2, 2009 · 21 min · ★ 7.4
Sheldon's solution to Penny's financial difficulty leads to a confrontation between Leonard and Penny's ex-boyfriend.
Directing: Mark Cendrowski · Writing: Eric Kaplan, Richard A. Rosenstock · Starring: Brian Patrick Wade
2x15 The Maternal Capacitance
Feb 9, 2009 · 21 min · ★ 8.1
Leonard and Penny are drawn together after a disastrous visit from Leonard's mother.
Directing: Mark Cendrowski · Writing: Steven Molaro, Richard A. Rosenstock · Starring: Christine Baranski
2x16 The Cushion Saturation
Mar 2, 2009 · 21 min · ★ 7.5
A paintball game leads to a fight between Sheldon and Penny, and romance for Leslie and Wolowitz.
Directing: Mark Cendrowski · Writing: Bill Prady, Lee Aronsohn · Starring: Sara Gilbert, Carol Ann Susi
2x17 The Terminator Decoupling
Mar 9, 2009 · 21 min · ★ 7.5
Leonard, Sheldon and Wolowitz are ecstatic to learn that a famous science-fiction actress (Summer Glau) is on board the train they are taking to San Francisco.
Directing: Mark Cendrowski · Writing: Tim Doyle, Stephen Engel · Starring: Summer Glau, Robert Clotworthy, George F. Smoot
2x18 The Work Song Nanocluster
Mar 16, 2009 · 20 min · ★ 7.6
Penny's home business turns into a complete nightmare when Sheldon takes over.
Directing: Peter Chakos · Writing: David Goetsch, Richard A. Rosenstock
2x19 The Dead Hooker Juxtaposition
Mar 30, 2009 · 20 min · ★ 7.6
Penny squares off with a new beautiful female neighbor who may become the building's "new Penny."
Directing: Mark Cendrowski · Writing: Steven Molaro · Starring: Valerie Azlynn, Carol Ann Susi
2x20 The Hofstadter Isotope
Apr 13, 2009 · 20 min · ★ 7.6
A fellow comic book enthusiast's hitting on Penny leads to Leonard and Howard going to a bar's Ladies' Night.
Directing: Mark Cendrowski · Writing: David Goetsch · Starring: Kevin Sussman
2x21 The Vegas Renormalization
Apr 27, 2009 · 22 min · ★ 7.5
Leonard and Koothrappali escort a heartbroken Wolowitz to Las Vegas, and Sheldon becomes locked out of his apartment and must stay with Penny.
Directing: Mark Cendrowski · Writing: Steven Molaro · Starring: Jodi Lyn O'Keefe
2x22 The Classified Materials Turbulence
May 4, 2009 · 19 min · ★ 7.5
Penny's second date with Stuart sees her making a comment that gives Leonard new hope for a relationship with her. Wolowitz realizes there's a crucial error in a NASA project he's working on.
Directing: Mark Cendrowski · Writing: Steven Molaro, Bill Prady · Starring: Kevin Sussman, Travis Davis, Robert Clotworthy
2x23 The Monopolar Expedition Season Finale
May 11, 2009 · 21 min · ★ 7.5
The guys' plan to work over the summer at the North Pole makes Penny revaluate her feelings for Leonard.
Directing: Mark Cendrowski · Writing: Eric Kaplan, Richard A. Rosenstock · Starring: Alice Amter, Brian George, Carol Ann Susi