The Lunar Excitation

May 24, 2010 on CBS at 8:00 PM
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Summary

While Penny worries that dating Leonard has ruined her for normal guys, Wolowitz and Koothrappali search for Sheldon's perfect match online.

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The Staircase Implementation
Season 3 Episode 22

May 17, 2010

Next episode

The Robotic Manipulation
Season 4 Episode 1

Sep 23, 2010

Guest stars

Mayim Bialik