The Big Bang Theory

The Best Episodes of The Big Bang Theory Season 3

Genre:Comedy
Network:CBS

Every episode of The Big Bang Theory Season 3 ranked from best to worst. Discover the Best Episodes of The Big Bang Theory Season 3!

Physicists Leonard and Sheldon find their nerd-centric social circle with pals Howard and Raj expanding when aspiring actress Penny moves in next door.
Episodes
23
Avg. Rating
8.2
S1
S2
S3
S4
E1
E2
E3
8.3
7.7
8.1

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  1. 9.0/10(5.8k votes)

    #1 - The Staircase Implementation

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    S3:E22

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

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    Writer:N/A
  2. 8.9/10(6.0k votes)

    #2 - The Adhesive Duck Deficiency

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    S3:E8

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

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    Writer:N/A
  3. 8.6/10(4.6k votes)

    #3 - The Lunar Excitation

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    S3:E23

    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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    Director:Peter Chakos
    Writer:N/A
  4. 8.4/10(4.5k votes)

    #4 - The Gorilla Experiment

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    S3:E10

    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.

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    Writer:N/A
  5. 8.4/10(4.6k votes)

    #5 - The Einstein Approximation

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    S3:E14

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

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    Writer:N/A
  6. 8.4/10(4.5k votes)

    #6 - The Precious Fragmentation

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    S3:E17

    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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    Writer:N/A
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  8. 8.4/10(4.5k votes)

    #7 - The Pants Alternative

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    S3:E18

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

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    Writer:N/A
  9. 8.3/10(4.8k votes)

    #8 - The Electric Can Opener Fluctuation

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    S3:E1

    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.

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  10. 8.3/10(4.5k votes)

    #9 - The Creepy Candy Coating Corollary

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    S3:E5

    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.

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    Writer:N/A
  11. 8.3/10(4.5k votes)

    #10 - The Vengeance Formulation

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    S3:E9

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

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    Writer:N/A
  12. 8.2/10(4.4k votes)

    #11 - The Maternal Congruence

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    S3:E11

    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.

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    Writer:N/A
  13. 8.2/10(4.4k votes)

    #12 - The Psychic Vortex

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    S3:E12

    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.

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    Writer:N/A
  14. 8.2/10(4.3k votes)

    #13 - The Excelsior Acquisition

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    S3:E16

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

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    Director:Peter Chakos
    Writer:N/A
  15. 8.1/10(4.5k votes)

    #14 - The Gothowitz Deviation

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    S3:E3

    Howard and Raj 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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    Writer:N/A
  16. 8.1/10(4.2k votes)

    #15 - The Spaghetti Catalyst

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    S3:E20

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

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  17. 8.1/10(4.5k votes)

    #16 - The Plimpton Stimulation

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    S3:E21

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

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    Writer:N/A
  18. 8.0/10(4.4k votes)

    #17 - The Pirate Solution

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    S3:E4

    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.

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  19. 8.0/10(4.3k votes)

    #18 - The Bozeman Reaction

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    S3:E13

    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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    Writer:N/A
  20. 8.0/10(4.2k votes)

    #19 - The Large Hadron Collision

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    S3:E15

    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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    Writer:N/A
  21. 7.8/10(4.3k votes)

    #20 - The Guitarist Amplification

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    S3:E7

    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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    Writer:N/A
  22. 7.8/10(4.2k votes)

    #21 - The Wheaton Recurrence

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    S3:E19

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

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    Writer:N/A
  23. 7.7/10(4.4k votes)

    #22 - The Jiminy Conjecture

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    S3:E2

    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.

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  24. 7.4/10(4.2k votes)

    #23 - The Cornhusker Vortex

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    S3:E6

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

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    Writer:N/A

Season 3 Ratings Summary

"The Staircase Implementation" is the best rated episode of "The Big Bang Theory" season 3. It scored 9/10 based on 5758 votes. Directed by Mark Cendrowski and written by N/A, it aired on 5/17/2010. This episode is rated 0.1 points higher than the second-best, "The Adhesive Duck Deficiency".