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The Big Bang Theory

IMDB: 8.2

2007, 12 seasons to date

Comedy

By Chuck Lorre

Latest Episodes

Leonard Hofstadter and Sheldon Cooper are both brilliant physicists working at Cal Tech in Pasadena, California. They are colleagues, best friends, and roommates, although in all capacities their relationship is always tested primarily by Sheldon's regimented, deeply eccentric, and non-conventional ways. They are also friends with their Cal Tech colleagues mechanical engineer Howard Wolowitz and astrophysicist Rajesh Koothrappali. The foursome spend their time working on their individual work projects, playing video games, watching science-fiction movies, or reading comic books. As they are self-professed nerds, all have little or no luck with women. When Penny, a pretty woman and an aspiring actress from Omaha, moves into the apartment across the hall from Leonard and Sheldon's, Leonard has another aspiration in life, namely to get Penny to be his girlfriend.

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Season 1

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    First Date Tips
    Episode 0: Unaired Pilot
    The first Pilot of what will become "The Big Bang Theory...
    May 1, 2006
  • 22
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    First Date Tips
    Episode 1: Pilot
    A pair of socially awkward theoretical physicists meet t...
    Oct 18, 2008
  • The Big Bran Hypothesis

    Penny is furious with Leonard and Sheldon when they sneak into her apartment and clean it while she is sleeping.

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    The Big Bran Hypothesis
  • The Fuzzy Boots Corollary

    Leonard gets upset when he discovers that Penny is seeing a new guy, so he tries to trick her into going on a date with him.

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    The Fuzzy Boots Corollary
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Season 2

  • The Barbarian Sublimation

    Sheldon introduces Penny to online gaming, however she refuses to quit after becoming addicted.

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    The Barbarian Sublimation
  • The Griffin Equivalency

    The guys struggle to cope with Raj's arrogance after he is featured in a People magazine article.

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    The Griffin Equivalency
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Season 3

  • The Gothowitz Deviation

    Sheldon attempts to covertly alter Penny's habits, while Howard and Raj try their luck meeting women at a Goth-style club.

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    The Gothowitz Deviation
  • The Pirate Solution

    When Raj has to find a new job or be sent back to India, Sheldon's solution leaves Leonard and Penny dealing with Howard as the third wheel.

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    The Pirate Solution
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Season 4

  • The Zazzy Substitution

    Following his 'breakup' with Amy, the gang become concerned with Sheldon's obsessive search for non-human companionship and call his mother to intervene.

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    The Zazzy Substitution
  • The Hot Troll Deviation

    Howard tries to get Penny's help in winning back Bernadette, but first has to confess the embarrassing reason why they broke up in the first place. Raj and Sheldon clash over a desk.

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    The Hot Troll Deviation
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Season 5

  • The Pulled Groin Extrapolation

    Leonard accompanies Amy to a colleague's wedding. Howard tries to convince Bernadette to live with his mother after they get married.

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    The Pulled Groin Extrapolation
  • The Wiggly Finger Catalyst

    Penny sets up Raj with a deaf friend, not knowing that she's actually a gold digger, and Sheldon decides to let his minor decisions rest on the roll of the dice.

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    The Wiggly Finger Catalyst
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Season 6

  • The Higgs Boson Observation

    When Sheldon hires a female grad student to assist him, a jealous Amy asks Penny to help her spy on them. On the space station, Howard begins behaving erratically.

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    The Higgs Boson Observation
  • The Re-Entry Minimization

    Howard is offended when his return from space is met with little fanfare. Penny and Amy take on Sheldon and Leonard during game night.

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    The Re-Entry Minimization
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Season 7

  • The Scavenger Vortex

    The gang get competitive when they are forced to take part in Raj's scavenger hunt.

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    The Scavenger Vortex
  • The Raiders Minimization

    Sheldon gets mad at Amy for ruining one of his favorite movies, Raj and Stuart try to make their online dating profiles more appealing, and Leonard tries to play the sympathy card with Penny.

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    The Raiders Minimization
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Season 8

  • The First Pitch Insufficiency

    Howard becomes nervous after NASA asks him to throw out the first pitch at a Los Angeles Angels game. Meanwhile, Leonard and Penny try to prove Sheldon wrong when he says that he and Amy have a 'superior' relationship.

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    The First Pitch Insufficiency
  • The Hook-up Reverberation

    Raj's honesty about his past comes back to haunt him after Emily takes a dislike to Penny. Meanwhile, the guys consider investing in the comic book store.

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    The Hook-up Reverberation
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Season 9

  • The Bachelor Party Corrosion

    The guys's skills are put to the test when they get a flat tire on the way to Mexico for Leonard's bachelor party. The girls throw Penny a mini-bachelorette party.

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    The Bachelor Party Corrosion
  • The 2003 Approximation

    An impending change to his living arrangements inspires Sheldon to revert to 2003, before he met Penny and Leonard. Raj and Howard form a band for the comic book store.

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    The 2003 Approximation
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Season 10

  • The Military Miniaturization

    Howard is visited by an Air Force colonel regarding his invention. Penny accidentally lets it slip to her co-workers Bernadette's secret that she is pregnant.

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    The Military Miniaturization
  • The Dependence Transcendence

    Bernadette confides to Raj she isn't sure if she's ready to be a mother. Penny accompanies Amy to a university mixer, and Sheldon goes to unusual extremes to assist Howard with his military project.

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    The Dependence Transcendence
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Season 11

  • The Relaxation Integration

    Sheldon and Amy struggle with picking a wedding date. Amy wants it near a cliff which Sheldon doesn't want. Meanwhile Stuart and Raj fight over one of Bernadette's co-workers for a date.

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    The Relaxation Integration
  • The Explosion Implosion

    Howard and Bernadette are disappointed when they find out the sex of the baby. Leonard is annoyed when his mother befriends Penny.

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    The Explosion Implosion
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Season 12

  • The Procreation Calculation

    The Wolowitzes' life gets complicated when Stuart starts bringing his new girlfriend home. Also, Penny and Leonard talk about starting a family while Koothrappali explores an arranged marriage.

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    The Procreation Calculation
  • The Tam Turbulence

    Sheldon won't tell anyone why he's never mentioned Tam, his childhood best friend, so Leonard takes matters into his own hands. Also, Bernadette and Penny take out Raj's fiancée, Anu, for dinner to get the skinny on her.

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    The Tam Turbulence
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