full Warner Bros. logo and opening title/credits sequence of each cartoon shown in each episode (as shown in the original theatrical versions and could take up to 20 seconds), new title cards were created to begin each cartoon, and displayed for only about five seconds over a newly composed musical cue; the card omitted the Warner Bros. logo and any detailed credits of the animators, and simply featured the title of the cartoon in bold letters on a plain background, the main character of the cartoon standing off to one side, and the copyright notice of the cartoon rendered in a smaller font at the bottom, before cutting directly to the opening scene of the cartoon, these cuts were sometimes awkward depending on how the original opening sequence was animated. A general credits line was shown at the end of each full episode: "Stories, Animation, layouts, and backgrounds: Members of Motion Picture Screen Cartoonists Local 839." (The Looney Tunes and Merrie Melodies cartoons syndicated to local stations as a package, beginning in the 1950s, generally retained the original opening title sequences as shown in theaters.) The show's theme song was "This Is It", written by Mack David and Jerry Livingston ("Overture/curtain, lights/this is it/the night of nights..."). The opening title sequence, animated by Freleng unit animator Gerry Chiniquy, features Bugs and Daffy Duck performing the song in unison. For the final chorus, a lineup of Looney Tunes characters joins Bugs and Daffy onstage (Porky Pig, however, is absent from the procession, although Porky had a spin-off show based on the original Bugs Bunny Show 4 years later titled The Porky Pig Show which aired on ABC from 1964 to 1967). The Bugs Bunny Show proved beneficial to the Warner Bros. cartoon staff, as it allowed the studio to remain open despite the shrinking market for theatrical animated shorts. The final first-run episode of the original Bugs Bunny Show aired on August 7, 1962, and the Warner Bros. animation studio closed the following spring. The move to Saturday mornings, 1962–1985 ABC began re-running The Bugs Bunny Show on Saturday mornings in April 1962 until September 1967 when it was moved to Sunday mornings for the remainder of its run. The series was rerun in color beginning in 1965, and remained on ABC until September 1968. At this point, the series switched to CBS, where it was combined with The Road Runner