It's the swingy '70s with wife swapping and free love when CBS' "Swingtown" premieres Thursday, June 5, at 10 p.m. The series is a flashback to an earlier decade that changed the social and political landscape of America. The series stars "Melrose Place" alum GRANT SHOW and LANA PARRILLA as the sexually free Deckers, MOLLY PARKER and JACK DAVENPORT as their new neighbors the Millers and JOSH HOPKINS and MIRIAM SHOR as the conservative Thompsons. "We [the Deckers] are bringing [the Millers] into a new world -- a world of fun and enjoyment. Get on the roller coaster with us. It is a good ride," Grant explains the first night's episode.