The Big Bang Theory

The Big Bang Theory

The Staircase Implementation (3x22)


Air date: May 17, 2010

Leonard tells Penny about how he met Sheldon for the first time...and what happened to the elevator.

  • Premiered: Sep 2007
  • Episodes: 279
  • Followers: 54,4k
  • Ended
  • CBS
  • Thursday at 20