"American Idol" 8 p.m. Fox — Omaha concludes audition rounds.

"The Big Bang Theory" 8 p.m. CBS — The guys mock Sheldon for trying to hold his own comic book convention.

"Community" 8 p.m. NBC — Annie and Professor Hickey prep for the midterm dance.

"Parks & Recreation" 8:30 p.m. NBC — Ann and Chris spend a final night in Pawnee.

"Rake" 9 p.m. Fox — Keegan defends Amish bakers accused of attempted murder.

"White Collar" 9 p.m. USA (fifth season finale) — Neal and Peter try to find treasure hidden beneath New York City.

"Two and a Half Men" 9:30 p.m. CBS — Marty proposes to Evelyn.

"Elementary" 10:01 p.m. CBS — Watson examines one of Sherlock's cold cases.