The Big Bang Theory

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  • : 279
  • : 544k
  • CBS
  • 20
  • Comedy Romance

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5
5x1
The Skank Reflex Analysis
Episode overview
Penny is worried with how damaged her friendship with the guys will be in the aftermath of her sleeping with Raj, while Sheldon becomes the leader of the paintball team.
5x2
The Infestation Hypothesis
Episode overview
A fight between Sheldon and Penny leaves Amy caught in the middle. Meanwhile, Leonard tries to spice up his long-distance relationship with Priya.
5x3
The Pulled Groin Extrapolation
Episode overview
Leonard and Amy get to know each other better when Amy invites Leonard to a wedding. Meanwhile, Howard and Bernadette spend the weekend with Mrs. Wolowitz.
5x4
The Wiggly Finger Catalyst
Episode overview
Penny plays Matchmaker for Raj, which results in him finding a girl he is comfortable talking to, but the gang suspects that she may be taking advantage of Raj.
5x5
The Russian Rocket Reaction
Episode overview
Sheldon and Leonard get invited to a party at Wil Wheaton's house, and Howard gets an out-of-this-world opportunity.
5x6
The Rhinitis Revelation
Episode overview
Sheldon's mother, Mary Cooper, comes to visit, but Sheldon is annoyed that she also spends time with the rest of the gang, instead of catering to his every demand.
5x7
The Good Guy Fluctuation
Episode overview
A cute comic book artist puts Leonard and Priya’s relationship to the test, while Sheldon tries to scare the guys for Halloween.
5x8
The Isolation Permutation
Episode overview
Amy becomes heartbroken when she discovers that Penny and Bernadette went wedding dress shopping without her and turns to a reluctant Sheldon for comfort.
5x9
The Ornithophobia Diffusion
Episode overview
Leonard and Penny try hanging out as friends on a 'non-date,' but end up purposely ruining each others chances with perspective dates. Meanwhile, Sheldon enlists the help of Bernadette and Amy to overcome his fear of birds.
5x10
The Flaming Spittoon Acquisition
Episode overview
Sheldon considers taking his relationship with Amy to the next level when Stuart from the comic book store asks her out on a date.
5x11
The Speckerman Recurrence
Episode overview
When Leonard's former high school tormentor resurfaces, Leonard must confront him. Meanwhile, Penny realizes she did her fair share of tormenting in the past.
5x12
The Shiny Trinket Maneuver
Episode overview
Sheldon gets in trouble with Amy when he isn't impressed by her recent accomplishment, and Howard must come to grips with Bernadette's dislike of children.
5x13
The Recombination Hypothesis
Episode overview
Leonard, who broke up with Priya, asks Penny out to a spur-of the-moment romantic dinner for two, and the duo contemplates resuming their relationship.
5x14
The Beta Test Initiation
Episode overview
Leonard and Penny deal with the idea of starting a relationship again and Raj finally finds a "woman" he can talk to without being drunk. Meanwhile, Sheldon decides to start a YouTube .. show full overview
5x15
The Friendship Contraction
Episode overview
Sheldon's selfish demands force Leonard to reconsider their friendship. Meanwhile, Wolowitz tries to pick his astronaut nickname.
5x16
The Vacation Solution
Episode overview
When Sheldon is forced to take his vacation, he goes to work with Amy in her neurobiology lab. Also, Bernadette wants Howard to sign a pre-nup.
5x17
The Rothman Disintegration
Episode overview
Sheldon and his rival Barry Kripke fight it out over the availability of a new office. Penny gets a gift from Amy that really tests their friendship and it doesn't end well.
5x18
The Werewolf Transformation
Episode overview
Sheldon becomes agitated when his regular barber is out sick. Astronaut training causes Howard to reconsider wanting to go into space. Penny beats Leonard in chess, the first time she plays.
5x19
The Weekend Vortex
Episode overview
Sheldon must choose between joining Amy at her aunt's birthday party or playing videogames all weekend with the guys.
5x20
The Transporter Malfunction
Episode overview
Penny buys Leonard and Sheldon “Star Trek” collectibles as a thank-you, leading Sheldon to be haunted by Mr. Spock. Meanwhile, Raj decides he has met the “Future Mrs. Koothrappali” after his parents set him up on a date.
5x21
The Hawking Excitation
Episode overview
When Wolowitz gets to work with Stephen Hawking, Sheldon is willing to do anything to meet his hero.
5x22
The Stag Convergence
Episode overview
After the guys throw Howard a bachelor party, Bernadette reconsiders marrying him after learning about his sexual history.
5x23
The Launch Acceleration
Episode overview
When NASA moves up Howard's mission, he must face his fears and Bernadette's dad, thus putting the wedding plans in jeopardy. Meanwhile, Leonard says something surprising to Penny in the bedroom.
5x24
The Countdown Reflection
Episode overview
As Howard's mission to space approaches, Howard and Bernadette decide to get married before his launch, causing the gang to scurry into overdrive in an effort to stage the wedding.

Characters