The Bus Pants Utilization

Their friendship becomes strained when Sheldon tries to take over Leonard's creation of a smart phone application that solves differential equations.

Season 4 | Episode 12
TV-14-DL
PRESENTED BY
Cast

Jim Parsons

Sheldon Cooper

Johnny Galecki

Leonard Hofstadter

Kaley Cuoco

Penny

Simon Helberg

Howard Wolowitz

Kunal Nayyar

Raj Koothrappali