The Big Bang Theory Season 3 Episode 10: The Gorilla Experiment
First aired on Dec. 7, 2009
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Penny gets help from Sheldon in order to understand what Leonard's work is, while Wolowitz develops a jealousy when Leonard starts hanging out with his new girlfriend.
Showing 1 quote.
If I hadn't gone into microbiology, I would have gone into physics. Or ice dancing.