Modern Family, South Park, and the Ugly Betty finale

Season 1 finale, 8 p.m., FOX

Human Target

As Season 1 comes to a close, Chance (Mark Valley), Winston (Chi McBride), and Guerrero (Jackie Earle Haley) reminisce about the past when Chance's former boss (Armand Assante) tries to convince him to return to his old job.

9 p.m., ABC

Modern Family

Jay (Ed O'Neill) and Phil (Ty Burrell) duke it out for a coaching spot on Manny (Rico Rodriguez) and Luke's (Nolan Gould) baseball team. Plus, Cameron (Eric Stonestreet) takes Mitchell (Jesse Tyler Ferguson) to a job interview.

9 p.m., FOX

American Idol

Two contestants are voted off and Adam Lambert takes the Idol stage again to perform his new single, "Whataya Want From Me."

Series finale, 10 p.m., ABC

Ugly Betty

In the series finale, Betty (America Ferrera) struggles to tell Daniel (Eric Mabius) about her future plans, Justin (Mark Indelicato) and Bobby (Adam Rodriguez) try to persuade Hilda (Ana Ortiz) to move to Manhattan, and Marc (Michael Urie) wonders if he'll end up alone.

10 p.m., COMEDY

South Park

South Park celebrates its 200th episode by pulling a Seinfeld and reuniting all of the famous faces that the show has ridiculed over the years. In the milestone episode, the celebs strike back against the town with a class-action lawsuit.

Also on the airwaves...
The New Adventures of Old Christine, 8 p.m., CBS
America's Next Top Model, 8 p.m., CW
The Middle, 8:30 p.m., ABC
Accidentally on Purpose, 8:30 p.m., CBS
Criminal Minds, 9 p.m., CBS
Fly Girls, 9 p.m., CW
MythBusters, 9 p.m., DSC
Cougar Town, 9:30 p.m., ABC
High Society, 9:30 p.m., CW
CSI: NY, 10 p.m., CBS
Dog the Bounty Hunter, 10 p.m., A&E;
Top Chef Masters, 10 p.m., BRAVO
In Plain Sight, 10 p.m., USA
Ugly Americans, 10:30 p.m., COMEDY
NBA Basketball: Pacers v. Wizards, Suns v. Jazz
MLB Baseball: Astros v. Cardinals

What are you watching tonight?

Follow writer Stefanie Lee on Twitter: @StefAtTVDotCom

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