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Looking to watch The Big Bang Theory Season 3 Episode 23 online? TV Fanatic is your destination for every paid and free streaming option of the The Big Bang Theory S3E23 full episode from 2 affiliates.

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Episode Details

The Big Bang Theory Season 3 Episode 23: "The Lunar Excitation"

Blossom alert! Former sitcom star Mayim Bialik guest stars on the season finale as a potential love interest for Sheldon.

The Big Bang Theory Season 3 Episode 23 Quotes

Don't worry about the moon. We set our laser to "stun."

Leonard

Sheldon: I should have brought an umbrella.
Leonard: What for? It's not gonna rain.
Sheldon: I know that, but with skin as fair as mine, moon burn is a real possibility.

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