Whose Line Is It Anyway? (7 p.m., CW/Ch. 30): Guests include Heather Anne Campbell and Lisa Leslie.
America's Got Talent (8 p.m., NBC/Ch. 5): A dozen acts perform in New York.
So You Think You Can Dance (7 p.m., Fox/Ch. 13): The remaining 12 contestants perform; two are eliminated.
Rizzoli & Isles (7 and 9 p.m. TNT): A high school teacher is killed.
Big Brother (8 p.m., CBS/Ch. 2): The veto competition takes place.
Capture (8 p.m., CW/Ch. 30): A chance for sabotage is revealed.
Perception (8 and 10 p.m., TNT): Pierce is called in to verify a man's death-bed confession.
Pretty Little Liars (9 p.m., ABC Family): ``A'' unleashes a shocking act.
Twisted (10 p.m., ABC Family): Danny may be sent away for good. (But I'm thinking probably not, because then there would be no show.)
Who Do You Think You Are? (10 p.m., TLC): Chelsea Handler learns about her family history.
Covert Affairs (10 p.m., USA): Annie and Auggie's relationship is strained.
Suits (11 p.m., USA): Harvey's defense strategy hits a roadblock.