“The Cohabitation Formulation” — Wolowitz contemplates taking things with Bernadette to the next level, while Leonard rekindles his relationship with Raj’s sister – leading Penny’s (Kaley Cuoco, left) self-declared BFF Amy (Mayim Bialik, right) to offer unsolicited emotional support, on THE BIG BANG THEORY, Thursday, Feb. 17 (8:00-8:31 PM, ET/PT) on the CBS Television Network.
Photo: Monty Brinton/CBS
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