He provided the vocals to the theme song of "Funny Face", ""The Kind of Girl She Is"." When the show returned as "The Sandy Duncan Show", he was replaced by a chorus of unknown men and women. He also guest-starred in the 1960s series "The Rat Patrol" (season 2, episode 8, "The Do-Re-Mi Raid," where he performed "That Tiny World" in the role of PFC Roberts, a POW being held by the Germans), "Police Woman", "McMillan & Wife", "The Hardy Boys/Nancy Drew Mysteries", "Match Game", and "Night Court". He played himself in the episode "The Vegas Show" of "It's a Living". Jones sang the opening theme for the television series "The Love Boat" from 1977 through 1985, and also made several guest appearances on the show, including one with his father Allan.