Knock on their door

"Three's Company" may have seemed like titillating TV back in the 1970s, but there's almost an innocence in the way Jack coexisted with his female roomies. In honor of the sitcom's 40th anniversary, fresh interviews with castmates will be dropped in at various times during a 40-hour marathon, which also includes episodes of "The Tonight Show" featuring the late John Ritter.

Noon Saturday, Antenna TV

Pro choice

If you're going to have someone from the WWE babysit your kids, it might as well be John Cena. The superstar fighter, whose fiercest weapon may be his charm, hosts "The Kid's Choice Awards" with performances by Little Mix, Camila Cabello and Machine Gun Kelly. A sneak peek at Nick's new mystery series "Hunter Street" immediately follows the sliming.

7 p.m. Saturday, Nick

Rising star

NBC continues to keep new episodes of the sitcom "The Carmichael Show" on the shelf, a shame considering that its star and creator is a whip-smart comic at the top of his game. "Jerrod Carmichael: 8" gives you a chance to see him in his element, charging into politically incorrect territory with both poise and punch. Because he's black, comparisons to Chris Rock seem inevitable, but his comedy will go over even better with fans of Louis C.K.

9 p.m. Saturday, HBO

Neal Justin