Episode List
Current Episode (aired May 16, 2013)
The Bon Voyage Reaction
In the Season 6 finale, Penny is thrown for a loop when Leonard is offered a job overseas, but the news is an even bigger shock to Sheldon. Raj wants more out of his relationship with Lucy than she can handle.
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Season 3
Sep. 21, 2009
The Electric Can Opener Fluctuation
After returning from the North Pole, a conflict among the guys sends Sheldon back to Texas and interferes with Leonard's reunion with Penny.
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Sep. 28, 2009
The Jiminy Conjecture
Leonard and Penny's first night together goes awkwardly. Sheldon and Howard wager on the species of a cricket.
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Oct. 5, 2009
The Gothowitz Deviation
Sheldon attempts to covertly alter Penny's habits, while Howard and Raj try their luck meeting women at a Goth-style club.
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Oct. 12, 2009
The Pirate Solution
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.
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Oct. 19, 2009
The Creepy Candy Coating Corollary
Wolowitz begs Penny to set him up with one of her friends; Sheldon seeks payback against Wil Wheaton.
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Nov. 2, 2009
The Cornhusker Vortex
To blend in better with several of Penny's friends from back home, Leonard learns about football...from Sheldon. Meanwhile, a loss in a kite war threatens to end Raj and Howard's friendship.
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Nov. 9, 2009
The Guitarist Amplification
Sheldon is forced to play peacemaker when Leonard and Penny have an argument, mainly because their fighting is bringing back repressed childhood memories.
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Nov. 16, 2009
The Adhesive Duck Deficiency
Penny separates her shoulder in the bathtub, and is forced to turn to Sheldon for help. Meanwhile, the rest of the guys accidentally get stoned in the desert while waiting for a meteor shower
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Nov. 23, 2009
The Vengeance Formulation
Sheldon vows payback after Kripke humiliates him on the radio. Howard gets advice concerning his relationship with Bernadette...from "Battlestar Galactica's" Katee Sackhoff.
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Dec. 7, 2009
The Gorilla Experiment
Sheldon attempts to help Penny understand physics to impress Leonard, and Wolowitz becomes jealous when his new girlfriend takes an interest in Leonard's research.
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Dec. 14, 2009
The Maternal Congruence
Leonard's mother makes a visit to his dismay and Sheldon's delight.
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Jan. 11, 2010
The Psychic Vortex
Raj talks Sheldon into being his wingman at a university mixer. Leonard has trouble dealing with Penny consulting a psychic.
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Jan. 18, 2010
The Bozeman Reaction
When their apartment is robbed, Leonard and Sheldon turn to their friends to create a state-of-the-art security system.
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Feb. 1, 2010
The Einstein Approximation
Sheldon acts even more strangely when he is stumped by a difficult physics question, so he is forced to resort to Einstein-inspired measures to unclutter his mind and solve the problem.
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Feb. 8, 2010
The Large Hadron Collision
When Leonard must travel to Switzerland on Valentine's Day to visit the CERN laboratory, Sheldon uses any and all means to be his guest instead of Penny.
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Mar. 1, 2010
The Excelsior Acquisition
Sheldon misses an opportunity to get Stan Lee's autograph because he has to make an appearance in traffic court.
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Mar. 8, 2010
The Precious Fragmentation
When the guys find an actual ring from the "Lord of the Rings" trilogy at a garage sale, their friendship is threatened.
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Mar. 22, 2010
The Pants Alternative
Sheldon needs the gang's help in overcoming his fear of public speaking when he receives an award.
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Apr. 12, 2010
The Wheaton Recurrence
Sheldon takes on his newest nemesis, Star Trek's Wil Wheaton, in bowling. Leonard and Penny's relationship comes to a crossroad.
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May 3, 2010
The Spaghetti Catalyst
With Leonard and Penny now broken up, Sheldon is forced to go behind Leonard's back to spend time with her.
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May 10, 2010
The Plimpton Stimulation
Sheldon and Penny are both disturbed and disappointed when Leonard hooks up with Sheldon's visiting female physicist friend.
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May 17, 2010
The Staircase Implementation
After Leonard and Sheldon get in a fight over the thermostat, Leonard goes to Penny's apartment and tells her about how he met Sheldon for the first time and how they became roommates...and what happened to the elevator.
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May 24, 2010
The Lunar Excitation
Penny has a night of angry, drunken sex with Leonard, which Leonard soon misinterprets as something other than a mistake. Meanwhile, Wolowitz and Koothrappali search for Sheldon's perfect match online.
