Biography (8 p.m. Fri., A&E) has a new profile of Martha Stewart. Margot Kidder and Chad Lowe guest as a very creepy mother and son suspected of murder on Law & Order: Special Victims Unit (10 p.m. Fri., NBC). Pierce Brosnan hosts Saturday Night Live (11:30 p.m. Sat., NBC), with music from Destiny's Child. Set the VCR: Hank learns that he's suffering from a rare butt-cheek condition on King of the Hill (7:30 p.m. Sun., Fox). Flanders builds a Christian theme park in his late wife's memory on The Simpsons (8 p.m. Sun., Fox). On The Sopranos (9 p.m. Sun., HBO), Paulie and Christopher have a scary time in the Pine Barrens, Meadow reconsiders Jackie Jr. and Tony's mistress erupts. Who Wants to Be a Millionaire (9 p.m. Sun., ABC) begins a week-long celebrity edition; contestants include Edie Falco, Ben Stiller, Dennis Franz, Kelly Ripa and John Leguizamo. Doggett and Mulder search for a half-human, half-reptile thingie on The X-Files (9 p.m. Sun., Fox). The Practice (10 p.m. Sun., ABC) airs its 100th episode, which means it's now available for syndication. A creepy murder suspect threatens ADA Bay.

Specials

Grab the Mic: A Hip-Hop History (noon, repeated 7 p.m., Sat., MTV) looks back at the rise of the genre and its influence on pop culture. Dr. Dre, Chuck D, Salt 'n' Pepa and Eminem are among those interviewed. The miniseries Steve Martini's 'The Judge' (9 p.m. Sun., NBC) stars Chris Noth as a lawyer defending his former adversary, a tough judge (Edward James Olmos) accused of murder. Costarring Lolita Davidovich and Sonia Braga. Kimberly Williams stars in the new TV movie Follow the Stars Home (9 p.m. Sun., CBS), about a woman raising her terminally ill daughter alone after her husband abandons them. With Campbell Scott, Eric Close and Blair Brown. The four-part miniseries Armistead Maupin's 'Further Tales of the City' (10 p.m. Sun., Showtime) continues the serial about a group of San Franciscans -- gay, straight, transgender -- and their romantic misadventures. This installment is set in 1981, and AIDS is rearing its ugly head. Laura Linney, Olympia Dukakis, Billy Campbell, Mary Kay Place and Paul Hopkins are among the stars.

Sports

Baseball:
Cardinals at Braves (7:30 p.m. Fri., 7 p.m. Sat., 1 p.m. Sun., TBS)
Yankees at Orioles (1:30 p.m. Sat., FX)
Red Sox at A's (8 p.m. Sun., ESPN)

Horse racing:
The Kentucky Derby (5 p.m. Sat., NBC)

NBA playoffs:
Raptors at Knicks, Game 5 (8 p.m. Fri., TNT)
Hornets at Bucks, Game 1 (12:30 p.m. Sun., NBC)
Kings at Lakers, Game 1 (3 p.m. Sun., NBC)

NHL playoffs:
Kings at Avalanche, Game 5 (8 p.m. Fri., ESPN)
Penguins at Sabres, Game 5 (1 p.m. Sat., ABC)
Maple Leafs at Devils, Game 5 (7 p.m. Sat., ESPN)
Avalanche at Kings, Game 6 if necessary (10:30 p.m. Sun., ESPN2)

Talk

Rosie O'Donnell (syndicated) Stevie Nicks, Will Ferrell
David Letterman (CBS) Joan Cusack, Shuggie Otis
Jay Leno (NBC) Kathie Lee Gifford
Dennis Miller (HBO) Al Michaels
Politically Incorrect (ABC) Mos Def, Pauly Shore
Conan O'Brien (NBC) Eric McCormack
Craig Kilborn (CBS) The Rock

All times Eastern unless noted.