was re-pitched to Silverman, who liked the material but, disliking the title Mysteries Five, decided to call the show Who's S-S-Scared? Silverman presented Who's S-S-Scared? to the CBS executives as the centerpiece for the upcoming 1969–70 season's Saturday-morning cartoon block. CBS president Frank Stanton felt that the presentation artwork was too scary for young viewers and, thinking the show would be the same, decided to pass on it. Now without a centerpiece for the upcoming season's programming, Silverman had Ruby, Spears, and the Hanna-Barbera staff revise the treatments and presentation materials to tone down the show and better reflect its comedy elements. The rock band element was dropped, and more attention was focused upon Shaggy and Too Much. According to Ruby and Spears, Silverman was inspired by Frank Sinatra's scat "doo-be-doo-be-doo" at the end of his recording of "Strangers in the Night" on a red-eye flight to one of the development meetings, and decided to rename the dog "Scooby-Doo" and retitled the show Scooby-Doo, Where Are You! The revised show was re-presented to CBS executives, who approved it for production. History CBS years (1969–76) Scooby-Doo, Where Are You! The first episode of Scooby-Doo, Where Are You! "What a Night for a Knight" debuted on the CBS network Saturday, September 13, 1969, at 10:30 AM Eastern Time. The original voice cast featured Don Messick as Scooby-Doo, Casey Kasem as Shaggy, Frank Welker as Fred, actress Nicole Jaffe as Velma, and Indira Stefanianna as Daphne. Scooby's speech patterns closely resembled an earlier cartoon dog, Astro from The Jetsons (1962–63), also voiced by Messick. Seventeen episodes of Scooby-Doo Where Are You! were produced in 1969–70. The series theme song was written by David Mook and Ben Raleigh, and performed by Larry Marks. Each of these episodes features Scooby and the four teenage members of Mystery, Inc.—Fred, Shaggy, Daphne and Velma—arriving at a location in the Mystery Machine, a van painted with psychedelic colors and flower power imagery. Encountering a purportedly supernatural monster terrorizing the local populace, such as a ghost, they decide to investigate. The kids split up to look for clues and suspects, while being chased at turns by the monster. Eventually, the kids come to realize the paranormal activity is actually an elaborate hoax, and—often with the help of a Rube Goldberg-like trap designed by Fred—they capture the creature suit-wearing villain and unmask him or her. Revealed as a flesh and