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Summary
The guys set up an experiment on the building's roof to bounce a laser off of the moon. Leonard goes to Penny's apartment to invite her to watch, only to find she has male company. Penny's date Zack thinks the experiment sounds cool, so he and Penny accompany Leonard to the roof, where Zack shows himself to be extraordinarily dim-witted. Later that night, Penny, realizing Leonard has made it impossible for her to enjoy dating unintelligent men, g...
Episode Guide
Season 01
Season 02
Season 03
Season 04
Season 05
Season 06
Season 07
Season 08
Season 09
Season 10
Season 11
Season 12