Saturday's Highlights: 'Lady Gaga Presents the Monster Ball Tour' on HBO
Pretty Hurts: A skin-care clinic in Beverly Hills is the setting for this new reality series (8 p.m. Logo).
My Cat From Hell: It's bad kitty and worse kitty in this new feline-centric reality series (9 p.m. Animal Planet).
Saturday Night Live: Former cast member and current “30 Rock” star Tina Fey returns as guest host (11:29 p.m. NBC).
American Joy: This new special follows the ups and downs of five average American families as it celebrates those proverbial “little things” that matter most in life (8 p.m. WE).
Scott Pilgrim vs. the World: Michael Cera stars in this exciting 2010 mix of comedy and action (7 p.m. and midnight HBO).
Three Weeks, Three Kids: Anna Chlumsky stars in this made-for-cable 2011 fable (9 p.m. Hallmark).
Salt: Angelina Jolie is a one-woman wrecking crew in this fast-paced 2010 actioner (9 p.m. Starz).
Hockey: The NHL playoffs continue as the Lightning play the Capitals (9:30 a.m. NBC) and the Predators challenge the Canucks (5 p.m. VS).
Baseball: The Twins take on the Red Sox (10 a.m. Fox); the Dodgers meet the Mets (4 p.m. KCAL); regional coverage (5 p.m. MLB); the Angels host the Indians (6 p.m. FSN); and the White Sox face the Mariners (6 p.m. WGN America).
Horse racing: The 137th running of the Kentucky Derby takes place at Churchill Downs in Louisville, Ky. (1 p.m. NBC).
Basketball: The Thunder meet the Grizzlies (2 p.m. ESPN) and the Heat face the Celtics (5:15 p.m. ABC) in NBA playoff action.
NASCAR: The Showtime Southern 500 gets underway in Darlington, S.C. (4 p.m. Fox).
Soccer: The Galaxy welcomes the Red Bulls (8 p.m. ESPN2).
Photo: Josh Olins / HBO