Live With Regis and Kelly

(9-10 a.m., 6ABC) - Guest cohost Bryant Gumbel; actress Julia Stiles (

Raving

); winner of

The Apprentice: Los Angeles

; celebrity look-alikes.

Rachael Ray (10-11 a.m., 6ABC) - Actor Aaron Eckhart (No Reservations); loosening the apron strings on the children.

Martha (11 a.m.-noon, NBC10) - Businessman Michael Eisner prepares a recipe perfect for Mother's Day; Clark and Chloe Pang perform.

The Ellen DeGeneres Show (3-4 p.m., NBC10) - Actor Anthony Hopkins (Fracture); Stevie Nicks performs.

Nova (8-9 p.m., WHYY TV12) - Solar power: It's not just for granola-crunching 1970s throwbacks anymore. The new episode "Saved by the Sun" takes a new look at the potential for solar energy in a world where the future of oil is even more uncertain than it was 30 years ago. The good news is that breakthroughs in technology over the last three decades make it easier and cheaper to harness the power of the sun.

Boston Legal (10-11 p.m., 6ABC) - Politics makes strange bedfellows, and the law makes strange opponents. In this new episode, Alan (James Spader) opposes old friend Jerry Espenson (Christian Clemenson) in a lawsuit against a department store accused of selling "pornographic" kids dolls. Speaking of obscenity, Denny's (William Shatner) insensitive remark to a black job applicant has Shirley and Paul (Candice Bergen, Rene Auberjonois) pondering his future at the firm.

Late Show With David Letterman (11:35 p.m.-12:35 a.m., CBS3) - Actor David Hyde Pierce; Corinne Bailey Rae performs.

The Tonight Show With Jay Leno (11:35 p.m.-12:35 a.m., NBC10) - TV personality Bill Maher; Amy Winehouse performs.

Jimmy Kimmel Live (12:05-1:05 a.m., 6ABC) - Actor Jamie Kennedy; singer Iggy Pop; the latest celebrity eliminated from Dancing With the Stars; the Stooges perform.

The Late Late Show With Craig Ferguson (12:35-1:35 a.m., CBS3) - TV personality Paula Abdul; actor Vinnie Jones; comic Billy D. Washington.

Late Night With Conan O'Brien (12:35-1:35 a.m., NBC10) - Actor Rob Huebel; comic Ian Edwards.

Last Call With Carson Daly (1:35-2:05 a.m., NBC10) - Actor Luke Wilson.