8:30 p.m., ABCCharlie McDermott) ex-girlfriend Morgan (Alexa Vega) tries to win him back, and Brick's (Atticus Shaffer) paternal instincts emerge when he takes care of a baby chick for a science project.
9 p.m., ABCTy Burrell) father (guest star Fred Willard) arrives for a visit and Cameron (Eric Stonestreet) offers to fill the vacant drummer spot in Dylan's band. (P.S. The Modern Family cast is also on Top Chef Masters tonight; the contestants will be making them dinner at 10 p.m. on BRAVO.)
Series premiere, 10 p.m., ABCLauren German) arrives in Haplin, Minnesota on the same day that a gruesome murder occurs at a local pond and ruins Deputy Tommy Conroy's (Geoff Stults) planned boat launch.
10 p.m., NBCSharon Stone guest-stars as District Attorney Jo Marlowe, who also happens to be Stabler's (Christopher Meloni) former partner. She requests Stabler and Benson's (Mariska Hargitay) assistance in a case involving a father accused of murdering his daughters.
11:35 p.m., CBSRobert Downey, Jr.
Also on the airwaves...
America's Next Top Model, 8 p.m., CW
American Idol, 9 p.m., FOX
Mercy, 8 p.m., NBC
Fly Girls, 9 p.m., CW
Cougar Town, 9:30 p.m., ABC
High Society, Season 1 finale, 9:30 p.m., CW
Dog the Bounty Hunter, 10 p.m., A&E;
South Park, 10 p.m., COMEDY
In Plain Sight, 10 p.m., USA
Ugly Americans, Season 1 finale, 10:30 p.m., COMEDY
NBA Basketball Playoffs: Jazz v. Nuggets
MLB Baseball: Twins v. Tigers
What are you watching tonight?
Follow TV.com writer Stefanie Lee on Twitter: @StefAtTVDotCom