The Big Bang Theory

CBS | 8:00 pm

It arguably worked better for an earlier sitcom trio, but three’s also company for Leonard, Penny and Raj (Johnny Galecki, Kaley Cuoco, Kunal Nayyar) as they try to get used to living together in "The Collaboration Fluctuation." Amy (Mayim Bialik) isn’t sure how to respond to Sheldon’s (Jim Parsons) sudden interest in her work. Pamela Adlon ("Better Things") continues her guest role. Simon Helberg and Melissa Rauch also star.