Best Bets on TV tonight

“American Idol” (8 p.m., Fox): Things start to heat up on “American Idol” with the Hollywood Round. That means it’s time to weed out the annoying pretenders as we mock them from the comfort of our couches. We’ll also get our first look at Ellen DeGeneres in action.

“Past Life” (9 p.m., Fox): The new crime drama “Past Life” theorizes that what’s happening to the victims today hinges on who they were before. So, if this show bombs, will it be reincarnated in a future series?