THE BIG BANG THEORY
CBS, 8:00 p.m. ET
Last week, Sheldon and Amy got back together as boyfriend and girlfriend. This week, CBS promos aren’t exactly being subtle about what to expect from their romantic reconciliation. To quote: “It’s the Big Bang you’ve been waiting for!” Something else I’ve been waiting for, in addition to the chance to dangle my participle, is another appearance by Bob Newhart as Sheldon’s spirit guide, former TV host Professor Proton. Newhart plays this character so well that even though Professor Proton is dead, he still kills.