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Leonard and Sheldon are brilliant physicists - geniuses in the laboratory, but socially challenged everywhere else. Enter beautiful, street-smart neighbor, Penny, who aims to teach them a thing or two about life. Despite their on-again, off-again relationship in the past, Leonard believes he's found true love with Penny. Even Sheldon has found a female companion, entering into a "Relationship Agreement" with neurobiologist Amy Farrah Fowler. In their free time, Leonard and Sheldon continue to enjoy frequent trips to the comic book store and fantasy role-playing games with their ever-expanding universe of friends, including fellow scientists Koothrappali, Wolowitz and Wolowitz's adorable microbiologist wife, Bernadette. (source: www.cbs.com)

Genres: Comedy
Station: CBS (US)
Rating: 9.25/10 from 220 users
Status: Ended
Start: 2007-09-24

The Big Bang Theory Season 3 Air Dates

S03E01 - The Electric Can Opener Fluctuation Air Date: 22 September 2009 01:30 -

Sheldon flees back to Texas in disgrace when he learns the guys tampered with his arctic expedition data, forcing the guys to follow him and threatening Leonard's hopes for a romantic encounter with Penny.

S03E02 - The Jiminy Conjecture Air Date: 29 September 2009 01:30 -

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.

S03E03 - The Gothowitz Deviation Air Date: 06 October 2009 01:30 -

Howard and Raj visit a Goth nightclub to pick up women while Sheldon attempts to build a better Penny using chocolate-based behavior modification.

S03E04 - The Pirate Solution Air Date: 13 October 2009 01:30 -

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 third wheel.

S03E05 - The Creepy Candy Coating Corollary Air Date: 20 October 2009 01:30 -

While Sheldon settles a score with his nemesis, Wil Wheaton, Wolowitz begs Leonard to get Penny to set him up with one of her friends.

S03E06 - The Cornhusker Vortex Air Date: 03 November 2009 02:30 -

Sheldon teaches Leonard how to understand football while a kite-fighting incident threatens Howard and Raj's friendship.

S03E07 - The Guitarist Amplification Air Date: 10 November 2009 02:30 -

An argument between Leonard and Penny proves "inconvenient" to Sheldon.

S03E08 - The Adhesive Duck Deficiency Air Date: 17 November 2009 02:30 -

With Leonard, Howard and Raj away camping in the desert, an injured Penny has only Sheldon to rely on.

S03E09 - The Vengeance Formulation Air Date: 24 November 2009 02:30 -

After he's humiliated on National Public Radio, Sheldon vows to destroy Kripke, while Wolowitz tries not to destroy his new relationship with Bernadette.

S03E10 - The Gorilla Experiment Air Date: 08 December 2009 02:30 -

Sheldon attempts to help Penny understand Leonard's work, and Wolowitz becomes jealous when Leonard starts hanging out with his new girlfriend.

S03E11 - The Maternal Congruence Air Date: 15 December 2009 02:30 -

Visit from Leonard's mother delights Sheldon and horrifies Leonard.

S03E12 - The Psychic Vortex Air Date: 12 January 2010 02:30 -

While Sheldon and Koothrappali attend a university mixer, Leonard is upset to discover that Penny believes in psychics.

S03E13 - The Bozeman Reaction Air Date: 19 January 2010 02:30 -

When their apartment is robbed, Leonard and Sheldon turn to their friends to create a state-of-the-art security system.

S03E14 - The Einstein Approximation Air Date: 02 February 2010 02:30 -

Sheldon's search for the answer to a physics problem leads him to work at the Cheesecake Factory with Penny.

S03E15 - The Large Hadron Collision Air Date: 09 February 2010 02:30 -

Leonard can only bring one guest on a trip to see CERN's Large Hadron Collider in Switzerland on Valentine's Day.

S03E16 - The Excelsior Acquisition Air Date: 02 March 2010 02:30 -

Sheldon winds up in traffic court when he gets a ticket because of Penny.

S03E17 - The Precious Fragmentation Air Date: 09 March 2010 02:30 -

When the guys find a ring from "The Lord of the Rings" at a garage sale, it threatens to tear them apart.

S03E18 - The Pants Alternative Air Date: 23 March 2010 01:30 -

Sheldon's friends come to his aid when his fear of public speaking stands between him and a coveted award.

S03E19 - The Wheaton Recurrence Air Date: 13 April 2010 01:30 -

Fight between Leonard and Penny threatens their relationship, while Sheldon battles Wil Wheaton in bowling.

S03E20 - The Spaghetti Catalyst Air Date: 04 May 2010 01:00 -

When Leonard and Penny aren't speaking, Sheldon goes to extremes to keep them both happy.

S03E21 - The Plimpton Stimulation Air Date: 11 May 2010 01:30 -

Leonard and Sheldon compete for the attention of a famous female physicist.

S03E22 - The Staircase Implementation Air Date: 18 May 2010 01:30 -

Leonard tells Penny about how he met Sheldon for the first time...and what happened to the elevator.

S03E23 - The Lunar Excitation Air Date: 25 May 2010 01:30 -

While Penny worries that dating Leonard has ruined her for normal guys, Wolowitz and Koothrappali search for Sheldon's perfect match online.

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