"The Big Bang Theory" 8 p.m. CBS —Sheldon's major scientific breakthrough makes him feel like a fraud.

"Grey's Anatomy" 9 p.m. ABC — Derek and Callie work on a brain mapping project.

"White Collar" 9 p.m. USA Neal is assigned to a new handler and has a conflict of interest.

"The Michael J. Fox Show" 9:31 p.m. NBC — Harris hosts an office karaoke party.

"Covert Affairs" 10 p.m. USA — Auggie works with Calder to destroy Henry.

"Scandal" 10 p.m. ABC — Episode title is the ominous "Scarface" line: "Say Hello To My Little Friend."

"Elementary" 10:01 p.m. CBS —Holmes and Watson find themselves digging through the dark world of the Polish mob to find a killer.