Scooby-Doo, Where Are You! is the first (and flagship) incarnation of the long-running Hanna-Barbera Saturday morning cartoon Scooby-Doo. It premiered on September 13, 1969 at 10:30 a.m. EST and ran for two seasons on CBS as a half-hour long show. Twenty-five episodes were produced (seventeen in 1969-70 and eight more in 1970-71). The reruns can be seen in syndication and on such channels as Cartoon Network and Boomerang.