The Big Bang Theory - Season 4 Episode 17
The Toast Derivation
Release Date: Feb 24, 2011
S04 E17Feb 24, 2011
Where to Watch The Big Bang Theory Season 4 Episode 17 Now
The Toast Derivation - Watch Online: Streaming, Buy or Rent
Sheldon becomes concerned when everybody begins to hang out at Raj's apartment and discovers Leonard is the center of the group.