Scooby-Doo
The first episode of "Scooby-Doo, Where Are You!" "What a Night for a Knight" debuted on the CBS network Saturday, September 13, 1969. The original voice cast featured veteran voice actor Don Messick as Scooby-Doo, radio DJ Casey Kasem (later host of radio's syndicated "American Top 40") as Shaggy, actor Frank Welker (later a veteran voice actor in his own right) as Fred, actress Nicole Jaffe as Velma, and musician Indira Stefanianna Christopherson 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.
The 13 Ghosts of Scooby-Doo
The 13 Ghosts of Scooby-Doo is the seventh incarnation of the Hanna-Barbera Saturday morning cartoon "Scooby-Doo", and the final first-run version of the original 1969–1985 broadcast run of the series. It premiered on and ran for one season on ABC as a half-hour program. Thirteen episodes of the show were made in 1985. It replaced "Scary Scooby Funnies", a repackaging of earlier shows; another repackaged series, "Scooby's Mystery Funhouse", followed. The series also aired in reruns on USA Network in the 1990s, on Cartoon Network, and from time to time on Cartoon Network's sister channel Boomerang until 2014.