The Big Bang Theory
Season 3
200923 episodes
Worlds collide in Season 3! A love affair with Penny has opened a big, wide, wonderful world of romance for Leonard. But Sheldon likes the world just the way it was, thank you. All of which makes for a zany comic triangle with brainy, clueless Sheldon and practical, grounded Penny hilariously vying for the role of hypotenuse.
Episode 1
The Electric Can Opener Fluctuation
Sep 21, 200922m
TMDB rating 7.9TMDB
When Sheldon learns the guys tampered with his expedition data he got from the arctic, he leaves to Texas in disgrace. This results in the guys following him, which threatens Leonard's hope for some romantic time with Penny and the guys' friendship with Sheldon.
Episode 2
The Jiminy Conjecture
Sep 28, 200921m
TMDB rating 7.4TMDB
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.
Episode 3
The Gothowitz Deviation
Oct 5, 200920m
TMDB rating 7.5TMDB
Howard and Raj visit a Goth nightclub to pick up women while Sheldon attempts to build a better Penny using chocolate-based behavior modification.
Episode 4
The Pirate Solution
Oct 12, 200921m
TMDB rating 7.5TMDB
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.
Episode 5
The Creepy Candy Coating Corollary
Oct 19, 200921m
TMDB rating 7.7TMDB
After overhearing that Wil Wheaton is entering a trading-card competition, Sheldon decides to enter it himself. Meanwhile, Penny sets up one of her friends on a date with Wolowitz.
Episode 6
The Cornhusker Vortex
Nov 2, 200920m
TMDB rating 7.1TMDB
Sheldon becomes Leonard's teacher in order to understand football, while an incident with flying a kite threatens Howard and Raj's friendship.
Episode 7
The Guitarist Amplification
Nov 9, 200919m
TMDB rating 7.3TMDB
A squabble between Leonard and Penny sees Sheldon playing mediator, though out of his own incovenience from the sitiation rather than altruism.
Episode 8
The Adhesive Duck Deficiency
Nov 16, 200921m
TMDB rating 8.3TMDB
With Leonard, Howard and Raj away camping in the desert, an injured Penny has only Sheldon to rely on.
Episode 9
The Vengeance Formulation
Nov 23, 200919m
TMDB rating 7.8TMDB
After he's humiliated on National Public Radio, Sheldon vows to destroy Kripke, while Wolowitz tries not to destroy his new relationship with Bernadette.
Episode 10
The Gorilla Experiment
Dec 7, 200921m
TMDB rating 7.9TMDB
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.
Episode 11
The Maternal Congruence
Dec 14, 200920m
TMDB rating 7.6TMDB
A Christmas visit from his mother has Leonard discovering she's kept a lot of news from him that she shares with Sheldon and worrying if she'll approve of his romance with Penny.
Episode 12
The Psychic Vortex
Jan 11, 201019m
TMDB rating 7.9TMDB
Leonard is aghast to find out a secret of Penny's: she believes in psychics. Meanwhile, Sheldon tries to assist Koothrappali in picking up a girl at a university mixer.
Episode 13
The Bozeman Reaction
Jan 18, 201020m
TMDB rating 7.7TMDB
When their apartment is robbed, Leonard and Sheldon turn to their friends to create a state-of-the-art security system.
Episode 14
The Einstein Approximation
Feb 1, 201019m
TMDB rating 8.0TMDB
Sheldon's search for the answer to a physics problem leads him to work at the Cheesecake Factory with Penny.
Episode 15
The Large Hadron Collision
Feb 8, 201021m
TMDB rating 7.7TMDB
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.
Episode 16
The Excelsior Acquisition
Mar 1, 201021m
TMDB rating 7.8TMDB
Sheldon winds up in traffic court when he gets a ticket because of Penny.
Episode 17
The Precious Fragmentation
Mar 8, 201020m
TMDB rating 7.9TMDB
When the guys find a ring from "The Lord of the Rings" at a garage sale, it threatens to tear them apart.
Episode 18
The Pants Alternative
Mar 22, 201021m
TMDB rating 7.9TMDB
Sheldon's friends come to his aid when his fear of public speaking stands between him and a coveted award.
Episode 19
The Wheaton Recurrence
Apr 12, 201021m
TMDB rating 7.4TMDB
A fight between Leonard and Penny threatens their relationship, while Sheldon battles Wil Wheaton in bowling.
Episode 20
The Spaghetti Catalyst
May 3, 201020m
TMDB rating 7.8TMDB
When Leonard and Penny aren't speaking, Sheldon goes to extremes to keep them both happy.
Episode 21
The Plimpton Stimulation
May 10, 201021m
TMDB rating 7.4TMDB
Leonard and Sheldon compete for the attention of a famous female physicist.
Episode 22
The Staircase Implementation
May 17, 201020m
TMDB rating 8.4TMDB
Leonard tells Penny about how he met Sheldon for the first time...and what happened to the elevator.
Episode 23
The Lunar Excitation
May 24, 201020m
TMDB rating 7.8TMDB
While Penny worries that dating Leonard has ruined her for normal guys, Wolowitz and Koothrappali search for Sheldon's perfect match online.