TASTY: Singer-songwriter Rufus Wainwright, left, joins host Sam Mason for some food, music and chat on “Dinner With the Band,” at 10:30 p.m. on IFC.
Explorer: This new installment examines a potentially lethal form of insomnia (7 p.m. National Geographic).
American Idol: Shania Twain mentors the singers(8 p.m. Fox).
Glee: Kristin Chenoweth reprises her guest role on a new episode of the tune-filled comedy-drama (9 p.m. Fox).
Frontline: The vociferous debate over the safety of vaccines is considered (9 p.m. KCET).
Food Party: The delightful Thu Tran is back with more weird and wacky culinary adventures (10 and 10:15 p.m. IFC).
The Hills: The reality series returns, followed by the season premiere of the spinoff series “The City” (10 and 10:30 p.m. MTV).
Deadliest Warrior: This new episode imagines a hypothetical contest between two of history's greatest conquerors: Attila the Hun and Alexander the Great (10 p.m. Spike).
Crash Test: Real Wrecks, Real Stakes: This new series spotlights spectacular vehicular mayhem and mishaps caught on tape (11 p.m. Spike).
The Battle for Late Night: This special wades into the networks' struggle for talk-show supremacy (10 p.m. A&E).
Inside the Perfect Predator: The hunting prowess of the cheetahs, sharks, crocodiles and falcons are detailed in this new special (10 p.m. Animal Planet).
Moon: Sam Rockwell is the sole occupant of a lunar mining station — or is he? — in this 2009 sci-fi fable (5:35 p.m. Starz).
Baseball: The Dodgers meet the Mets (4 p.m. KCAL, MLB), and the Angels host the Indians (7 p.m. MyNet).
Basketball: NBA playoffs: The Chicago Bulls visit the Cleveland Cavaliers (5 p.m. TNT); the Oklahoma City Thunder visit the Lakers (7:30 p.m. FSN and TNT).
Hockey: NHL playoffs: The Detroit Red Wings visit the Phoenix Coyotes (6 p.m. VS).
Photo: Richard Stokes / IFC