The Big Bang Theory Season 3 Episodes
Season 3 Episode Guide
Episode 1 - The Electric Can Opener FluctuationOn the third season premiere, Sheldon (series star Jim Parsons) flees back to Texas in disgrace when he learns that the guys tampered with his arctic expedition data – forcing his friends to follow him, and threatening Leonard's (series star Johnny Galecki) hopes for a romantic encounter with Penny (series star Kaley Cuoco).
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Episode 2 - The Jiminy ConjectureLeonard and Penny struggle to recover from an awkward first hookup, while Sheldon and Howard (series star Simon Helberg) stake their best comic books on a bet to determine the species of a cricket. Lewis Black guest stars as an entymologist who settles the high-stakes bet.
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Episode 3 - The Gothowitz DeviationHoward and Raj (series star Kunal Nayyar) visit a Goth nightclub to pick up women, while Sheldon attempts to build a better Penny using chocolate-based behavior modification.
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Episode 4 - The Pirate SolutionRaj must find a new job or be sent back to India. Sheldon, however, has a solution – which leaves Leonard and Penny dealing with Howard as third wheel.
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Episode 5 - The Creepy Candy Coating CorollaryWhile Sheldon settles a score with his nemesis, Star Trek: The Next Generation's Wil Wheaton (guest starring as himself), Wolowitz begs Leonard to get Penny to set him up with one of her friends.
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Episode 6 - The Cornhusker VortexSheldon teaches Leonard how to understand football, while a kite-fighting incident threatens Howard and Raj's friendship.
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Episode 7 - The Guitarist AmplificationSheldon plays the peacemaker when an argument between Leonard and Penny proves “inconvenient” to him.
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Episode 8 - The Adhesive Duck DeficiencyWith Leonard, Howard and Raj away camping in the desert, an injured Penny has only Sheldon to rely on.
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Episode 9 - The Vengeance FormulationAfter he's humiliated on National Public Radio, Sheldon vows to destroy Kripke (guest star John Ross Bowie), and the guys help Sheldon exact his revenge. Meanwhile, Wolowitz tries not to destroy his new relationship with Bernadette (guest star Melissa Rauch). Katee Sackhoff (Battlestar Galactica) makes a cameo as Wolowitz’s dream girl.
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Episode 10 - The Gorilla ExperimentSheldon takes on his greatest challenge when he attempts to help Penny understand physics, and Wolowitz becomes jealous when Leonard starts hanging out with his new girlfriend.
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Episode 11 - The Maternal CongruenceA visit from Leonard's mother (guest star Christine Baranski) delights Sheldon and horrifies Leonard.
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Episode 12 - The Psychic VortexWhile Sheldon and Koothrappali attend a university mixer, Leonard is upset to discover that Penny believes in psychics. Danica McKellar (The Wonder Years) guest stars as the object of Raj’s attraction.
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Episode 13 - The Bozeman ReactionWhen their apartment is robbed, Leonard and Sheldon turn to their friends to create a state-of-the-art security system – and Sheldon struggles to cope.
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Episode 14 - The Einstein ApproximationSuffering from a case of physicists block, Sheldon's search for the answer to a physics problem leads him to work at the Cheesecake Factory with Penny.
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Episode 15 - The Large Hadron CollisionIts Valentines Day, and 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. Will it be Sheldon or Penny?
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Episode 16 - The Excelsior AcquisitionSheldon misses his chance to meet comic book legend STAN LEE (as himself) when he winds up in traffic court after he gets a ticket because of Penny.
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Episode 17 - The Precious FragmentationWhen the guys find a rare movie prop ring from The Lord of the Rings at a garage sale, it threatens to tear them apart - forcing them to choose the ring or their friendship.
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Episode 18 - The Pants AlternativeSheldon's friends come to his aid when his fear of public speaking stands between him and a coveted award.
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Episode 19 - The Wheaton RecurrenceA fight between Leonard and Penny threatens their relationship, while Sheldon battles WIL WHEATON (guest starring as Himself) in bowling.
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Episode 20 - The Spaghetti CatalystWhen Leonard and Penny aren't speaking, Sheldon goes to extremes to keep them both happy and gets caught in a lie.
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Episode 21 - The Plimpton StimulationLeonard and Sheldon compete for the attention of a famous female physicist - Dr. Elizabeth Plimpton (guest star JUDY GREER).
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Episode 22 - The Staircase ImplementationLeonard tells Penny the story of how he met Sheldon for the first time...and what happened to the elevator.
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Episode 23 - The Lunar ExcitationIn the third season finale, Wolowitz and Koothrappali search for Sheldon's perfect match online - and find Sheldon's ideal woman (guest star MAYIM BIALIK). Meanwhile, Penny worries that dating Leonard has ruined her for normal guys.
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