Elizabeth Banks

Thursday's TV highlights: 'Mom' on CBS

Thursday's TV highlights: 'Mom' on CBS

SERIES

The Big Bang Theory Sheldon (Jim Parsons) wants to settle an old grudge after his friends left him out of an investment that could have yielded big profits. Also, a video from 2010 reveals a relationship secret for Leonard and Penny (Johnny Galecki, Kaley Cuoco). Simon Helberg, Kunal Nayyar and Mayim Bialik also star. 8 p.m. CBS

Supernatural With their search for Jack running into one roadblock after another, Sam and Dean (Jared Padalecki, Jensen Ackles) reluctantly try to steal a trunk from the demon Barthamus (guest star David Cubitt) in exchange for a locater spell. 8 p.m. KTLA

Gotham Sofia (Crystal Reed)...

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