Scooby-Doo packaged together for syndication as "The Scooby-Doo Show", under which title they continue to air. The "Scooby-Doo" characters first appeared outside of their regular Saturday morning format in "Scooby Goes Hollywood", an hour-long ABC television special aired in prime time on December 13, 1979. The special revolved around Shaggy and Scooby attempting to convince the network to move Scooby out of Saturday morning and into a prime-time series, and featured spoofs of then-current television series and films such as "Happy Days", "Superman: The Movie", "Laverne & Shirley" and "Charlie's Angels". In 1979, Scooby's tiny nephew Scrappy-Doo was added to both
Scooby-Doo the predominantly skeptic oriented formula to that of most television dealing with paranormal themes, and considered that an adult analogue to "Scooby-Doo" would be a great public service. "Scooby-Doo" has maintained a significant fan base, which has grown steadily since the 1990s due to the show's popularity among both young children and nostalgic adults who grew up with the series. Several television critics have stated that the show's mix of the comedy-adventure and horror genres was the reason for its widespread success. As Fred Silverman and the Hanna-Barbera staff had planned when they first began producing the series, "Scooby-Doo"s ghosts,