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Season 3 Episode 1 The Electric Can Opener Fluctuation

Discovering that Leonard, Raj, and Howard fudged the results of his Arctic research expedition, a disgraced Sheldon heads home to Texas. Discovering that Leonard, Raj, and Howard fudged the results of his Arctic research expedition, a disgraced Sheldon heads home to Texas.

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Season 3 Episode 2 The Jiminy Conjecture

Sheldon and Howard wager comic books over a cricket's species. Meanwhile, a less-than-perfect romantic night agonizes Leonard and Penny. Sheldon and Howard wager comic books over a cricket's species. Meanwhile, a less-than-perfect romantic night agonizes Leonard and Penny.

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Season 3 Episode 3 The Gothowitz Deviation

Howard takes Raj along to check out the Goth dating scene. Sheldon uses chocolate as part of a behavior modification experiment on Penny. Howard takes Raj along to check out the Goth dating scene. Sheldon uses chocolate as part of a behavior modification experiment on Penny.

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Season 3 Episode 4 The Pirate Solution

Facing a return to India, Raj needs a job desperately enough to consider working for Sheldon. Meanwhile, Howard becomes a third wheel to Leonard and Penny. Facing a return to India, Raj needs a job desperately enough to consider working for Sheldon. Meanwhile, Howard becomes a third wheel to Leonard and Penny.

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Season 3 Episode 5 The Creepy Candy Coating Corollary

Sheldon looks forward to squaring off against the the one actor from the Star Trek universe he holds enmity towards—Wil Wheaton—in a fantasy collectable card game tournament. Wolowitz cashes in on an old pact with Leonard to get Penny to set him up with a friend of hers. Sheldon looks forward to squaring off against the the one actor from the Star Trek universe he holds enmity towards—Wil Wheaton—in a fantasy collectable card game tournament. Wolowitz cashes in on an old pact with Leonard to get Penny to set him up with a friend of hers.

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Season 3 Episode 6 The Cornhusker Vortex

Leonard gets tutored in understanding football by Sheldon, while a kite mishap puts a rift between Wolowitz and Raj. Leonard gets tutored in understanding football by Sheldon, while a kite mishap puts a rift between Wolowitz and Raj.

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Season 3 Episode 7 The Guitarist Amplification

A squabble between Leonard and Penny sees Sheldon playing mediator, though out of his own incovenience from the sitiation rather than altruism. A squabble between Leonard and Penny sees Sheldon playing mediator, though out of his own incovenience from the sitiation rather than altruism.

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Season 3 Episode 8 The Adhesive Duck Deficiency

With the rest of the gang off on a desert camping trip, Sheldon must play hero to an injured Penny. With the rest of the gang off on a desert camping trip, Sheldon must play hero to an injured Penny.

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Season 3 Episode 9 The Vengeance Formulation

Barry Kripke embarrasses Sheldon on NPR, and the gang rallies to help him get his revenge. Wolowitz, desperate to keep his romance with Bernadette alive, gets advice from a fantasy version of Katee Sackhoff. Barry Kripke embarrasses Sheldon on NPR, and the gang rallies to help him get his revenge. Wolowitz, desperate to keep his romance with Bernadette alive, gets advice from a fantasy version of Katee Sackhoff.

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Season 3 Episode 10 Full episode

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

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Season 3 Episode 11 Full Episode

Leonard's mother (Christine Baranski) visits, which pleases Sheldon but upsets Leonard. Leonard's mother (Christine Baranski) visits, which pleases Sheldon but upsets Leonard.

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Season 3 Episode 12 The Psychic Vortex

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

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Season 3 Episode 13 Full Episode

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Season 3 Episode 14 The Einstein Approximation

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

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Season 3 Episode 15 The Large Hadron Collision

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. 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.

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Season 3 Episode 16 The Excelsior Acquisition

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

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Season 3 Episode 17 The Precious Fragmentation

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

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Season 3 Episode 18 The Pants Alternative

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

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Season 3 Episode 19 The Wheaton Recurrence

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

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Season 3 Episode 20 The Spaghetti Catalyst

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

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Season 3 Episode 21 The Plimpton Stimulation

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

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Season 3 Episode 22 The Staircase Implementation

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

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Season 3 Episode 23 The Lunar Excitation

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