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The Big Bang Theory (2007)

S9E18 The Application Deterioration

Mar 10, 2016 Season 9 Episode 18 Comedy

Leonard, Sheldon, and Wolowitz encounter difficulties as they attempt to secure a patent for their infinite persistence gyroscope. Meanwhile, Penny, Amy, and Bernadette step in to offer dating tips to Koothrappali after he receives a message from Emily following their breakup.

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