The Monster Isolation

Feb 21, 2013 on CBS at 8:00 PM
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Summary

After a bad date, Koothrappali decides to never leave his apartment; Penny's acting skills impress Sheldon.

Previous episode

The Tangible Affection Proof
Season 6 Episode 16

Feb 14, 2013

Next episode

The Contractual Obligation Implementation
Season 6 Episode 18

Mar 07, 2013

Guest stars

Kate Micucci, Riccardo LeBron