The Big Bang Theory

Season 1 Episode 1

Pilot

70
Aired Monday 8:00 PM Sep 24, 2007 on CBS

Trivia

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  • Allusions

    • The number 42:
      In this episode, Koothrappali wears a ballcap with the number "42" stitched upon it. According to Douglas Adams' The Hitch Hiker's Guide to the Galaxy book series, 42 is the answer to the ultimate question of life, the universe, and everything.

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