The programme reprised past top twenty hits. These consisted of film, or video, and live performances by the original artistes, or guest performers, (who also acted as the shows hosts). The shows theme music, was, The Commodores, "Machine Gun", backed by the BBC's Electronic Workshop's "Kaleidoscope" effect, as used for the current "Dr. Who" opening titles, for the series of the time. (From personal observation, and memory. I was 29 at the time.)