The Big Bang Theory

Monday 8:00 PM on CBS Premiered Sep 24, 2007 In Season



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  • The Platonic Permutation

    Full Episode

    S 9 : Ep 9 - 11/19/15

  • The Mystery Date Observation

    Full Episode

    S 9 : Ep 8 - 11/12/15

    When Leonard, Penny and Bernadette learn that Amy is going out on a dinner date, the trio set out to spy on her and the guy. Meanwhile, Sheldon recruits Raj and Howard to find a woman for him, since they were responsible for getting Amy and him together.moreless
  • The Spock Resonance

    Full Episode

    S 9 : Ep 7 - 11/5/15

    Before he's about to be interviewed for a documentary created by Leonard Nimoy's son, Sheldon reveals to Leonard and Penny that he was going to propose to Amy before she broke up with him and they try to convince him to admit that he's hurt. Meanwhile, Bernadette plans on renovating the house and Howard is not too happy about it.

  • The Helium Insufficiency

    Full Episode

    S 9 : Ep 6 - 10/26/15

    As a Swedish team threatens to beat Leonard and Sheldon to proving their own theory, they consider breaking some rules in order to be able to make their experiment. Meanwhile, Penny and Bernadette set a dating app on Amy's phone.

  • The Perspiration Implementation

    Full Episode

    S 9 : Ep 5 - 10/19/15

    The guys want to learn to be better at sports so Barry Kripke teaches them fencing. Meanwhile the girls help Stuart try to get more women to come to the comic book store. Amy gets asked out by Stuart and Kripke but she turns them both down.

  • The 2003 Approximation

    Full Episode

    S 9 : Ep 4 - 10/12/15

    When Leonard and Penny move in together, Sheldon is very upset and longs for an emotion-free life like what he had in 2003. Meanwhile, Howard and Raj attempt to form a band.

  • The Bachelor Party Corrosion

    Full Episode

    S 9 : Ep 3 - 10/5/15

    The guys get together to throw Leonard a bachelor party in Mexico only to have car trouble put a damper on their plans. Meanwhile, Bernadette and Amy urge Penny to tell her parents that she is married.

  • The Separation Oscillation

    Full Episode

    S 9 : Ep 2 - 9/28/15

    Leonard and Penny are still having problems with their new marriage while Sheldon comes up with a few ways to get revenge on Amy for breaking up with him.

  • The Matrimonial Momentum

    Full Episode

    S 9 : Ep 1 - 9/21/15

    Penny and Leonard deal with Leonard's confession on the way down the aisle while Sheldon struggles to understand Amy's decision to take a step back from their relationship.

  • The Commitment Determination

    Full Episode

    S 8 : Ep 24 - 5/7/15

    In the Season 8 finale, Leonard and Penny are pressured to set a wedding date by Sheldon, whose relationship with Amy has taken an interesting turn.

  • The Maternal Combustion

    Full Episode

    S 8 : Ep 23 - 4/30/15

    Personalities collide when Sheldon and Leonard's mothers finally meet. Meanwhile, Howard finally decides to "man up" and do his fair share of the housework - but not without a little help from his friends.

  • The Graduation Transmission

    Full Episode

    S 8 : Ep 22 - 4/23/15

    When Leonard is set to give the commencement address at his former high school, a canceled flight threatens to stop him giving the speech. Meanwhile, Howard's engineering skills are tested when he and Sheldon try fix Raj's toy helicopter, while Raj plays his parents against each other after his father cuts him off financially.

  • The Communication Deterioration

    Full Episode

    S 8 : Ep 21 - 4/16/15

    When Raj is asked to submit a proposal to NASA, the guys end up in a fight. Penny wonders what to do when she asked to audition for a movie role.

  • The Fortification Implementation

    Full Episode

    S 8 : Ep 20 - 4/9/15

    When Sheldon and Amy build a blanket fort, they come to major crossroads in their relationship. Also, Wolowitz meets the half-brother he never knew he had, and when Penny is invited to appear on Wil Wheaton's podcast, she and Leonard have a huge, on-air argument.

  • The Skywalker Incursion

    Full Episode

    S 8 : Ep 19 - 4/2/15

    A speaking engagement at UC Berkeley puts Leonard and Sheldon in a galaxy not too far, far away from their idol George Lucas' Skywalker Ranch, and they consider dropping by. Meanwhile, Howard and Bernadette argue over what to do with his Doctor Who TARDIS, so Raj and Amy try to settle things with a game of table tennis.

  • The Leftover Thermalization

    Full Episode

    S 8 : Ep 18 - 3/12/15

    An electrical short thaws the last meal that was cooked by Mrs. Wolowitz, and the gang ponders what to do with it, while Sheldon and Leonard's work is featured in a magazine, but only one receives credit.

  • The Colonization Application

    Full Episode

    S 8 : Ep 17 - 3/5/15

    There's trouble in paradise when Amy discovers Sheldon signed up for a one-way mission to colonize Mars, and the two get into a dogfight at a pet store. Meanwhile, Leonard makes a very "adult" purchase for Penny; and Emily catches Raj snooping in her apartment.

  • The Intimacy Acceleration

    Full Episode

    S 8 : Ep 16 - 2/26/15

    As a joke, Sheldon and Penny try an experiment designed to make participants fall in love. Also, Leonard, Amy, Raj and Emily spend the evening trying to escape a room with a "zombie." And, after returning from Mrs. Wolowitz' funeral, Bernadette and Howard run into trouble at the airport.

  • The Comic Book Store Regeneration

    Full Episode

    S 8 : Ep 15 - 2/19/15

    Amid the excitement of Stuart reopening his comic-book store, Howard gets some unsettling news; and after teaching Sheldon how to "let it go," Penny doesn't practice what she preaches when she learns something maddening about Amy. Meanwhile, Raj and Leonard run into a restaurant customer who looks a lot like actor Nathan Fillion.

  • The Troll Manifestation

    Full Episode

    S 8 : Ep 14 - 2/5/15

    An online troll rips Leonard and Sheldon's published physics paper, so the guys rally to defend the two and expose the bully, while a girls night out leads to Penny, Amy and Bernadette dishing about embarrassing past events.

  • The Anxiety Optimization

    Full Episode

    S 8 : Ep 13 - 1/29/15

    Sheldon becomes concerned that his cushy lifestyle is impacting his professional progress and keeping him from achieving scientific renown, so he asks the gang to make life more difficult for him. Meanwhile, Howard invents an unflattering game about Raj.

  • The Space Probe Disintegration

    Full Episode

    S 8 : Ep 12 - 1/8/15

    While Raj eagerly awaits data from a space probe in which he was involved, Howard keeps distracting him. Later, dress shopping with Penny and Amy doesn't exactly prove to be a good fit for Leonard and Sheldon.

  • The Clean Room Infiltration

    Full Episode

    S 8 : Ep 11 - 12/11/14

    On Christmas Eve, Amy plans a traditional Victorian dinner, while Raj, Leonard and Howard scramble to remove a pigeon that flew into the clean room at the university. To prove a point to Amy, a Scrooge-like Sheldon buys her the worst possible gift.

  • The Champagne Reflection

    Full Episode

    S 8 : Ep 10 - 11/20/14

    Leonard, Raj and Howard clean out the office of the deceased Professor Roger Abbot and find a bottle of champagne meant to be opened when he made his first great scientific discovery. Meanwhile, Sheldon prepares his final episode of "Fun with Flags". Bernadette discovers that people are afraid of her.

  • The Septum Deviation

    Full Episode

    S 8 : Ep 9 - 11/13/14

    Leonard needs surgery for a deviated septum, and Sheldon gets his nose out of joint because he feels an operation is too dangerous and that his roommate may not make it out alive. Meanwhile, a distraught Raj learns his parents have divorced on the eve of their 40th anniversary.

  • The Prom Equivalency

    Full Episode

    S 8 : Ep 8 - 11/6/14

    Amy and Bernadette organize a prom to be held atop the guys' apartment complex, but Sheldon is leery of all the prom pomp, circumstance and romancing that goes with it.

  • The Misinterpretation Agitation

    Full Episode

    S 8 : Ep 7 - 10/30/14

    Penny's flirtatious sales pitch is misunderstood by a doctor-client, while Bernadette and Amy debate whether female scientists ought to play the sexuality card.

  • The Expedition Approximation

    Full Episode

    S 8 : Ep 6 - 10/20/14

    Sheldon and Raj undertake an underground research expedition that turns into a test of how long before they get under each other's skin. Meanwhile, Leonard and Penny argue about money, and go to Wolowitz and Bernadette for advice.

  • The Focus Attenuation

    Full Episode

    S 8 : Ep 5 - 10/13/14

    While Amy, Penny and Bernadette have a girls weekend in Vegas, Penny ends up having to study at the last minute, while Amy and Bernadette go out and get drunk. Back at home, with the girls gone, the four guys want to invent something new, but keep focusing on other things.

  • The Hook-Up Reverberation

    Full Episode

    S 8 : Ep 4 - 10/6/14

    Raj's brings his new girlfriend over to meet the gang, but she seems standoffish with Penny, who tries to figure out why. Meanwhile, the guys put their heads together to try to re-open Stuart's comic book store.

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