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 (character) series and movies. Scooby has a speech impediment and tends to pronounce most words as if they begin with an "R"; however, most characters are able to understand him almost perfectly. In most iterations, he keeps his sentences relatively short, usually using charades for anything longer than three or four words. His catchphrase, usually howled at the end of every production, is "Scooby-Dooby-Doo!" or "Rooby-Rooby-Roo". Scooby was voiced by Don Messick through "Arabian Nights" in 1994, after which point Messick quit smoking; quitting smoking changed his voice and prevented him from achieving the same raspy vocal effect (despite Messick's efforts,