“The Boyfriend Complexity” — Penny (Kaley Cuoco, center) asks Leonard (Johnny Galecki, left) to lie to her father (Keith Carradine, right), while Howard, Raj and Bernadette pull an all-nighter at a telescope, on THE BIG BANG THEORY, Thursday, Nov. 18 (8:00-8:31 PM, ET/PT) on the CBS Television Network.
Photo: Sonja Flemming/CBS
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