Saturday's Highlights: 'Weird Al Yankovic Live! —The Alpocalypse Tour' on Comedy Central
Doctor Who: All time and space hang in the balance on the day the Doctor dies in the season finale (6 p.m. BBC America).
Bedlam: This new occult drama opens as an emotionally fragile young man (Theo James) who sees ghosts rushes to the side of his cousin (Charlotte Salt) after receiving a series of text messages that she is in danger. Will Young, Ashley Madekwe and Hugo Speer also star (7 and 10 p.m. BBC America).
Saturday Night Live: Melissa McCarthy hosts with musical guest Lady Antebellum (11:29 p.m. NBC).
Storm Chasers Greatest Storms 2011: Three storm chasing teams relive the intense tornado activity and the terrible tragedies that made up the 2010 season (9 p.m. Discovery).
Knocked Up: In this 2007 comedy, Seth Rogen stars as party animal Ben Stone, whose one-night stand results in a baby with a young journalist (Katherine Heigl) (6 p.m. USA).
Pirates of the Caribbean: The Curse of the Black Pearl: A popular attraction at Disney theme parks comes to life in this eye-filling 2003 adventure (8 p.m. ABC Family).
Black Swan: Natalie Portman earned an Oscar for her complex portrayal of a ballet dancer who projects herself into the themes of “Swan Lake” in this 2010 drama (10 p.m. Cinemax).
College football: Kentucky at LSU (9 a.m. KDOC); Arkansas vs. Texas A&M (9 a.m. ESPN); Auburn at South Carolina (12:30 p.m. CBS); Arizona at USC (12:30 p.m. FSN2); Clemson at Virginia Tech (3 p.m. ESPN2); Alabama at Florida (5 p.m. CBS); Nebraska at Wisconsin (5 p.m. ABC); UCLA at Stanford (7:30 p.m. FSN2).
Baseball: MLB Playoffs: The Arizona Diamondbacks visit the Milwaukee Brewers (11 a.m. TBS); the St. Louis Cardinals visit the Philadelphia Phillies (2 p.m. TBS); the Tampa Bay Rays visit the Texas Rangers (4 p.m. TNT); the Detroit Tigers visit the New York Yankees (5:30 p.m. TBS).
Soccer: Real Salt Lake visits the Galaxy (7:30 p.m. FSN).
Photo: Comedy Central