9 Moments from The Big Bang Theory's "The Intimacy Acceleration"

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"The Intimacy Acceleration"

Leonard, Amy, Raj and Emily spend the evening trying to escape a room with a "zombie," on THE BIG BANG THEORY, Thursday, Feb. 26 (8:00-8:31 PM, ET/PT), on the CBS Television Network. Pictured left to right: Johnny Galecki, Mayim Bialik, Kunal Nayyar and Laura Spencer Photo: Monty Brinton/CBS ©2015 CBS Broadcasting, Inc. All Rights Reserved