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The gang tries to help Wolowitz and Bernadette get married before the space launch.

The Big Bang Theory

The Countdown Reflection

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Nickelodeon East HD

Nickelodeon (East) The first network just for kids. Nickelodeon is a world leader in original programming for children with shows like Rugrats.

Nickelodeon East

Wedding plans are jeopardized when NASA reschedules Howard's mission; Leonard says something in the bedroom that surprises Penny.

The Launch Acceleration

Knowledge of Howard's sexual history makes Bernadette reconsider their future together.

The Stag Convergence

When Stephen Hawking comes to lecture at the university for a week, Wolowitz is given the task of maintaining his wheelchair, making Sheldon green with envy.

The Hawking Excitation

When Penny buys Leonard and Sheldon "Star Trek" collectibles, Sheldon finds himself haunted by Mr. Spock; after a blind date, Raj believes he has met his future wife.

The Transporter Malfunction

Sheldon chooses to participate in a guys-only weekend Star Wars gaming marathon rather than go with Amy to her aunt's birthday party; he gets a lesson from Penny and Amy.

The Weekend Vortex

Sheldon's routine is turned upside down when his barber gets sick; Wolowitz questions his decision to go into space.

The Werewolf Transformation

Sheldon and his nemesis, Kripke, compete for a corner office; Penny feels uncomfortable after receiving a gift from Amy.

The Rothman Disintegration

Sheldon goes to work with Amy in her neurobiology lab when the university forces him to take a vacation; Bernadette asks Howard to sign a pre-nup.

The Vacation Solution

Leonard starts to reconsider his friendship with Sheldon; Wolowitz tries to choose his astronaut nickname.

The Friendship Contraction

Penny and Leonard experiment with their new relationship; Raj forms a bond with his phone's virtual assistant.

The Beta Test Initiation

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Everything could change when Leonard spontaneously invites Penny to a romantic dinner.

The Recombination Hypothesis

Physicists and best friends Leonard and Sheldon learn about the social aspects of life through their relationships with the free-spirited beauty who moves in next door.

Amy and Leonard try to become better acquainted; Bernadette, Howard and Mrs. Wolowitz spend the weekend together.

S5 E3 | The Pulled Groin Extrapolation

E24 | The Countdown Reflection

E23 | The Launch Acceleration

E22 | The Stag Convergence

E21 | The Hawking Excitation

E20 | The Transporter Malfunction

E19 | The Weekend Vortex

E18 | The Werewolf Transformation

E17 | The Rothman Disintegration

E16 | The Vacation Solution

E15 | The Friendship Contraction

E14 | The Beta Test Initiation

E13 | The Recombination Hypothesis