The Toast Derivation

Feb 24, 2011 on CBS at 8:00 PM
Mark as watched

Summary

Sheldon becomes concerned when everybody begins to hang out at Raj's apartment and discovers Leonard is the center of the group.

Previous episode

The Cohabitation Formulation
Season 4 Episode 16

Feb 17, 2011

Next episode

The Prestidigitation Approximation
Season 4 Episode 18

Mar 10, 2011

Guest stars

LeVar Burton