The Zazzy Substitution

When Sheldon "breaks up" with Amy, the guys worry when he starts replacing her with cats.

Season 4 | Episode 3
TV-14-DL
Available September 9
PRESENTED BY
Cast

Jim Parsons

Sheldon Cooper

Johnny Galecki

Leonard Hofstadter

Kaley Cuoco

Penny

Simon Helberg

Howard Wolowitz

Kunal Nayyar

Raj Koothrappali