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"The Agreement Dissection" -- When Priya uses her lawyer skills to pick apart the roommate agreement, the girls (Kaley Cuoco, left; Mayim Bialik, right) take Sheldon (Jim Parsons, center) dancing, on THE BIG BANG THEORY, Thursday, April 28 (8:00-8:31 PM, ET/PT) on the CBS Television Network. Photo: Rober Voets/CBS ©2011 CBS Broadcasting Inc. All Rights Reserved