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Season 3 Episodes

Episodes

The Electric Can Opener Fluctuation

1. The Electric Can Opener Fluctuation

22 min
9/21/2009

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.

S3 E1
The Jiminy Conjecture

2. The Jiminy Conjecture

21 min
9/28/2009

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.

S3 E2
The Gothowitz Deviation

3. The Gothowitz Deviation

20 min
10/5/2009

Howard and Raj visit a Goth nightclub to pick up women while Sheldon attempts to build a better Penny using chocolate-based behavior modification.

S3 E3
The Pirate Solution

4. The Pirate Solution

21 min
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.

S3 E4
The Creepy Candy Coating Corollary

5. The Creepy Candy Coating Corollary

21 min
10/19/2009

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.

S3 E5
The Cornhusker Vortex

6. The Cornhusker Vortex

20 min
11/2/2009

Sheldon becomes Leonard's teacher in order to understand football, while an incident with flying a kite threatens Howard and Raj's friendship.

S3 E6
The Guitarist Amplification

7. The Guitarist Amplification

19 min
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.

S3 E7
The Adhesive Duck Deficiency

8. The Adhesive Duck Deficiency

21 min
11/16/2009

With Leonard, Howard and Raj away camping in the desert, an injured Penny has only Sheldon to rely on.

S3 E8
The Vengeance Formulation

9. The Vengeance Formulation

19 min
11/23/2009

After he's humiliated on National Public Radio, Sheldon vows to destroy Kripke, while Wolowitz tries not to destroy his new relationship with Bernadette.

S3 E9
The Gorilla Experiment

10. The Gorilla Experiment

21 min
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.

S3 E10
The Maternal Congruence

11. The Maternal Congruence

20 min
12/14/2009

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.

S3 E11
The Psychic Vortex

12. The Psychic Vortex

19 min
1/11/2010

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.

S3 E12
The Bozeman Reaction

13. The Bozeman Reaction

20 min
1/18/2010

When their apartment is robbed, Leonard and Sheldon turn to their friends to create a state-of-the-art security system.

S3 E13
The Einstein Approximation

14. The Einstein Approximation

19 min
2/1/2010

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

S3 E14
The Large Hadron Collision

15. The Large Hadron Collision

21 min
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.

S3 E15
The Excelsior Acquisition

16. The Excelsior Acquisition

21 min
3/1/2010

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

S3 E16
The Precious Fragmentation

17. The Precious Fragmentation

20 min
3/8/2010

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

S3 E17
The Pants Alternative

18. The Pants Alternative

21 min
3/22/2010

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

S3 E18
The Wheaton Recurrence

19. The Wheaton Recurrence

21 min
4/12/2010

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

S3 E19
The Spaghetti Catalyst

20. The Spaghetti Catalyst

20 min
5/3/2010

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

S3 E20
The Plimpton Stimulation

21. The Plimpton Stimulation

21 min
5/10/2010

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

S3 E21
The Staircase Implementation

22. The Staircase Implementation

20 min
5/17/2010

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

S3 E22
The Lunar Excitation

23. The Lunar Excitation

20 min
5/24/2010

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

S3 E23

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Season 3

Season 3

7.7/10
2009
23 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.

Cast