TV highlights: 'America's Got Talent' returns on NBC

(All times Eastern) RETURNING SHOW: Now in its 10th cycle, "America's Got Talent" (NBC at 8 p.m.) presents America's best and worst talents on the stage at Radio City Music Hall to show off whatever mind-blowing or pathetic talents people want to present. Howie Mandel, Heidi Klum, Howard Stern and Mel B return as judges. As always, Nick Cannon hosts.