THE BIG BANG THEORY Season 6 Episode 19 The Closet Reconfiguration Photos : “The Closet Reconfiguration” – Howard struggles with whether or not he should open a letter from his father, and Leonard and Penny throw a “grown-up” cocktail party at the apartment, on THE BIG BANG THEORY, Thursday, March 14 (8:00 – 8:31 PM, ET/PT) on the CBS Television Network.