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Aired Thursday June 23, 5:30pm - 6:00pmon E4

The Big Bang Theory

Series 3 Episode 22: The Staircase Implementation

This episode flashes back to the start of Sheldon and Leonard friendship seven years previously and explains the housemate agreement and how Sheldon saved the lives of his friends.

Category
Sitcom
Original air date
2010-05-17
Cast and crew
  • Mark CendrowskiDirector
  • Johnny GaleckiLeonard
  • Jim ParsonsSheldon
  • Kaley CuocoPenny
  • Simon HelbergWolowitz
  • Kunal NayyarKoothrappali
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