“The First Pitch Insufficiency” — Leonard and Penny try to prove Sheldon wrong after he says that he and Amy are a “superior couple,” on THE BIG BANG THEORY, Monday, Sept. 29, 2014 (8:00-8:31, ET/PT), on the CBS Television Network. Pictured left to right: Kaley Cuoco-Sweeting, Johnny Galecki, Jim Parsons and Mayim Bialik Photo: Michael Yarish/Warner Bros. Entertainment Inc. é 2014 WBEI. All rights reserved.