The Citation Negation Season 12, Episode 9 - Aired November 15, 2018
Sheldon and Amy are devastated after learning from a Russian paper that Super Asymmetry has already been discovered and disproven. Also, ultra-competitive Bernadette asks Stuart's girlfriend, Denise, to teach her how to beat Howard in a popular videogame.
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Guest Stars: Lauren Lapkus as Denise
Director: Kristy Cecil