The Big Bang Theory

Season 3 Episode 22: The Staircase Implementation

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

Genre:

Comedy

Seasons:

12

Episodes:

279

Cast:

Johnny Galecki, Jim Parsons, Kaley Cuoco

Quality:

HD

Duration:

20 min

First Air:

2007

Rating:

7.9