The Big Bang Theory Season 9 Episode 18 - The Application Deterioration

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Watch The Big Bang Theory season 9 episode 18 online for free at WatchSeriesLite. Leonard, Sheldon, and Wolowitz run into problems when they file for a patent for their infinite persistence gyroscope. Also, Penny, Amy and Bernadette give Koothrappali dating advice when Emily reaches out to him after their breakup. The Big Bang Theory is an American sitcom that stars Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg, Kunal Nayyar, Sara Gilbert, Melissa Rauch and Mayi…

Air Date: March 10, 2016

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