TV highlights: 'Royal Pains,' 'Top Chef Masters'

It's power-of-veto night on "Big Brother" (CBS at 8), and while the pesky "three nominees" twist is gone, the stakes are still high as the finale and $500,000 prize get closer. Four more acts advance to the next round on "America's Got Talent" (NBC at 9), as the aspiring famous people try to impress judges Howard Stern, Mel B, Howie Mandel and Heidi Klum.