Aired Thursday June 20, 1:30pm - 2:00pmon E4

The Big Bang Theory

Series 4 Episode 12: The Bus Pants Utilization

Leonard's idea for a smartphone application derails his friendship with Sheldon as they fight for control of the project.

Original air date
Cast and crew
  • Johnny GaleckiLeonard Hofstadter
  • Jim ParsonsSheldon Cooper
  • Kaley CuocoPenny
  • Simon HelbergHoward Wolowitz
  • Kunal NayyarRaj Koothrappali