The Ellen DeGeneres Show

(3-4 p.m., NBC10) - Republican presidential candidate John McCain; Steve McGarva, founder of Island Dog.

Oprah Winfrey

(4-5 p.m., 6ABC) - Oprah's neighborhood throws a party.

Ugly Betty

(8-9 p.m., 6ABC) - Henry, your timing needs work. In the season finale, Betty (America Ferrera) gets a romantic offer from Gio (Freddy Rodriguez) and a visit from Henry (Christopher Gorham), who has his own proposition for her. Wilhelmina (Vanessa Williams) tries to strike out supermodel Naomi Campbell (guest starring as herself) at a softball game between Mode and Elle. Real-life Elle editors Joe Zee and Robbie Myers also guest-star.

Last Comic Standing

(9:30-11 p.m., NBC10) - Season six of the competitive reality series for comedians has something new: celebrity talent scouts. In the opener, Richard Belzer (

Law & Order: Special Victims Unit

) and Steven Schirripa (

The Sopranos

) monitor the auditions in New York, and Kathy Najimy (

King of the Hill

) and Fred Willard (

Back to You

) are at the tryouts in Tempe, Ariz. Bill Bellamy returns as host.

Late Show With David Letterman

(11:35 p.m.-12:35 a.m., CBS3) - Piedmont Bird Callers; actress Sarah Jessica Parker; Republic Tigers perform.

The Tonight Show With Jay Leno

(11:35 p.m.-12:35 a.m., NBC10) - First lady Laura Bush and daughter Jenna; the winner of

American Idol

; Tristan Prettyman performs.

Jimmy Kimmel Live

(12:05-1:05 a.m., 6ABC) - Actor Johnny Knoxville; Death Cab for Cutie performs.

The Late Late Show With Craig Ferguson

(12:35-1:35 a.m., CBS3) - Comic Steven Wright; TV personality Carson Kressley.

Late Night With Conan O'Brien

(12:35-1:35 a.m., NBC10) - Actor Kevin Spacey.