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Season 3 Episodes
The Lunar Excitation
Season 3, Episode 23 - Air Date: 5/21/2010
While Penny worries that dating Leonard has ruined her for normal guys, Wolowitz and Koothrappali search for Sheldon's perfect match online.
The Staircase Implementation
Season 3, Episode 22 - Air Date: 5/12/2010
Leonard tells Penny about how he met Sheldon for the first time...and what happened to the elevator.
The Plimpton Stimulation
Season 3, Episode 21 - Air Date: 5/5/2010
Leonard and Sheldon compete for the attention of a famous female physicist.
The Spaghetti Catalyst
Season 3, Episode 20 - Air Date: 4/28/2010
When Leonard and Penny aren't speaking, Sheldon goes to extremes to keep them both happy.
The Wheaton Recurrence
Season 3, Episode 19 - Air Date: 4/7/2010
A fight between Leonard and Penny threatens their relationship, while Sheldon battles Wil Wheaton in bowling.
The Pants Alternative
Season 3, Episode 18 - Air Date: 3/17/2010
Sheldon's friends come to his aid when his fear of public speaking stands between him and a coveted award.
The Precious Fragmentation
Season 3, Episode 17 - Air Date: 3/5/2010
When the guys find a ring from "The Lord of the Rings" at a garage sale, it threatens to tear them apart.
The Excelsior Acquisition
Season 3, Episode 16 - Air Date: 2/23/2010
Sheldon winds up in traffic court when he gets a ticket because of Penny.
The Large Hadron Collision
Season 3, Episode 15 - Air Date: 2/8/2010
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.
The Einstein Approximation
Season 3, Episode 14 - Air Date: 2/8/2010
Sheldon's search for the answer to a physics problem leads him to work at the Cheesecake Factory with Penny.
The Bozeman Reaction
Season 3, Episode 13 - Air Date: 1/18/2010
When their apartment is robbed, Leonard and Sheldon turn to their friends to create a state-of-the-art security system.
The Psychic Vortex
Season 3, Episode 12 - Air Date: 1/11/2010
While Sheldon and Koothrappali attend a university mixer, Leonard is upset to discover that Penny believes in psychics.
The Maternal Congruence
Season 3, Episode 11 - Air Date: 12/14/2009
A visit from Leonard's mother delights Sheldon and horrifies Leonard.
The Gorilla Experiment
Season 3, Episode 10 - Air Date: 12/7/2009
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.
The Vengeance Formulation
Season 3, Episode 9 - Air Date: 11/24/2009
After he's humiliated on National Public Radio, Sheldon vows to destroy Kripke, while Wolowitz tries not to destroy his new relationship with Bernadette.
The Adhesive Duck Deficiency
Season 3, Episode 8 - Air Date: 11/16/2009
With Leonard, Howard and Raj away camping in the desert, an injured Penny has only Sheldon to rely on.
The Guitarist Amplification
Season 3, Episode 7 - Air Date: 11/9/2009
A squabble between Leonard and Penny sees Sheldon playing mediator, though out of his own incovenience from the sitiation rather than altruism.
The Cornhusker Vortex
Season 3, Episode 6 - Air Date: 10/16/2009
Sheldon becomes Leonard's teacher in order to understand football, while an incident with flying a kite threatens Howard and Raj's friendship.
The Creepy Candy Coating Corollary
Season 3, Episode 5 - Air Date: 10/19/2009
After overhearing that Wil Wheaton is entering a trading-card competition, Sheldon decides to enter it himself.
The Pirate Solution
Season 3, Episode 4 - Air Date: 10/12/2009
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.
The Gothowitz Deviation
Season 3, Episode 3 - Air Date: 10/5/2009
Sheldon believe he can train Penny like a lab rat on the next episode of The Big Bang Theory.Copy and paste this link in your browser,and watch full episode in HD :
The Jiminy Conjecture
Season 3, Episode 2 - Air Date: 9/22/2009
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.
The Electric Can Opener Fluctuation
Season 3, Episode 1 - Air Date: 8/17/2009
When Sheldon learns the guys tampered with his expedition data he got from the arctic, he leaves to Texas in disgrace.
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