"American Idol" 8 p.m. Fox — Could the finale ultimately be Candice vs. Angie?

"Big Bang Theory" 8 p.m. CBS — Raj uncovers a secret about the new woman in his life.

"Two and a Half Men" 8:31 p.m. CBS— Lyndsey's breakup with Alan leaves him crushed.

"Grey's Anatomy" 9 p.m. ABC — A CDC investigation targets Bailey.

"Project Runway" 9 p.m. Lifetime (11th season finale) — Stanley is the likeliest to win but Patricia is a dark horse.

"Person of Interest" 9:01 p.m. CBS — A medical luminary is poisoned.

"Elementary" 10:01 p.m. CBS — Sherlock searches for the accomplice of a murdered blackmailer.

"Scandal" 10:02 p.m. ABC — Details from Huck's background are disclosed.