TV highlights: 'Limitless' premieres on CBS

(All times Eastern.)SERIES PREMIERE: The new mockumentary-style comedy "The Muppets" (ABC at 8 p.m.) follows the puppets as they work on Miss Piggy's new late-night talk show.Emmy-winning filmmaker Bob Poole's documentary, "Gorongosa Park: Rebirth of Paradise" (PBS at 8), chronicles a massive effort to restore a Mozambique wilderness park.