The Big Bang Theory Howard and Sheldon (Simon Helberg, Jim Parsons) bond over having disappointing fathers, while Leonard (Johnny Galecki) is disturbed when his mother and Penny (Christine Baranski, Kaley Cuoco) become best friends. 8 p.m. CBS
The Voice Rascal Flatts, Billy Ray Cyrus, Joe Jonas and Kelly Rowland help the coaches prepare their artists as the battle rounds begin 8 p.m. NBC
Supergirl “Jane the Virgin’s” Yael Grobglas crosses over to another CW show, guest starring as a psychically gifted thief whose ability to manipulate others’ fears gives Supergirl (Melissa Benoist) a new challenge. 8 p.m....