Watch The Big Bang Theory Online
TV-14 CBS 22m 2006 8.3
**Airs Thursday, 8:00 PM EST on CBS**
A woman who moves into an apartment across the hall from two brilliant but socially awkward physicists shows them how little they know about life outside of the laboratory.
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The Big Bang Theory Full Episodes
Aired: September 21st, 2009 @ 7:00 PM CST
When Sheldon learns the guys tampered with his expedition data he got from the arctic, he leaves to Texas in disgrace. This results in the guys following him, which threatens Leonard's hope for...
Aired: September 28th, 2009 @ 7:00 PM CST
Leonard and Penny struggle to recover from an awkward first hookup while Sheldon and Howard stake their best comic books on a bet to determine the species of a cricket.
Aired: October 5th, 2009 @ 7:00 PM CST
Howard and Raj visit a Goth nightclub to pick up women while Sheldon attempts to build a better Penny using chocolate-based behavior modification.
Aired: October 12th, 2009 @ 7:00 PM CST
Raj must find a new job or be sent back to India, but Sheldon has a solution, which leaves Leonard and Penny dealing with Howard as a third wheel.
Aired: October 19th, 2009 @ 7:00 PM CST
After overhearing that Wil Wheaton is entering a trading-card competition, Sheldon decides to enter it himself. Meanwhile, Penny sets up one of her friends on a date with Wolowitz.
Aired: November 2nd, 2009 @ 7:00 PM CST
Sheldon becomes Leonard's teacher in order to understand football, while an incident with flying a kite threatens Howard and Raj's friendship.
Aired: November 9th, 2009 @ 7:00 PM CST
A squabble between Leonard and Penny sees Sheldon playing mediator, though out of his own incovenience from the sitiation rather than altruism.
Aired: November 16th, 2009 @ 7:00 PM CST
With Leonard, Howard and Raj away camping in the desert, an injured Penny has only Sheldon to rely on.
Aired: November 23rd, 2009 @ 7:00 PM CST
After he's humiliated on National Public Radio, Sheldon vows to destroy Kripke, while Wolowitz tries not to destroy his new relationship with Bernadette.
Aired: December 7th, 2009 @ 7:00 PM CST
Penny gets help from Sheldon in order to understand what Leonard's work is, while Wolowitz develops a jealousy when Leonard starts hanging out with his new girlfriend.
Aired: December 14th, 2009 @ 7:00 PM CST
A Christmas visit from his mother has Leonard discovering she's kept a lot of news from him that she shares with Sheldon and worrying if she'll approve of his romance with Penny.
Aired: January 11th, 2010 @ 7:00 PM CST
Leonard is aghast to find out a secret of Penny's: she believes in psychics. Meanwhile, Sheldon tries to assist Koothrappali in picking up a girl at a university mixer.
Aired: January 18th, 2010 @ 7:00 PM CST
When their apartment is robbed, Leonard and Sheldon turn to their friends to create a state-of-the-art security system.
Aired: February 1st, 2010 @ 7:00 PM CST
Sheldon's search for the answer to a physics problem leads him to work at the Cheesecake Factory with Penny.
Aired: February 8th, 2010 @ 7:00 PM CST
Leonard can only bring one guest on a trip to see CERN's Large Hadron Collider (the world's largest and highest energy particle accelerator) in Switzerland on Valentine's Day.
Aired: March 1st, 2010 @ 7:00 PM CST
Sheldon winds up in traffic court when he gets a ticket because of Penny.
Aired: March 8th, 2010 @ 7:00 PM CST
When the guys find a ring from "The Lord of the Rings" at a garage sale, it threatens to tear them apart.
Aired: March 22nd, 2010 @ 7:00 PM CST
Sheldon's friends come to his aid when his fear of public speaking stands between him and a coveted award.
Aired: April 12th, 2010 @ 7:00 PM CST
A fight between Leonard and Penny threatens their relationship, while Sheldon battles Wil Wheaton in bowling.
Aired: May 3rd, 2010 @ 7:00 PM CST
When Leonard and Penny aren't speaking, Sheldon goes to extremes to keep them both happy.
Aired: May 10th, 2010 @ 7:00 PM CST
Leonard and Sheldon compete for the attention of a famous female physicist.
Aired: May 17th, 2010 @ 7:00 PM CST
Leonard tells Penny about how he met Sheldon for the first time...and what happened to the elevator.