<Tr> <Th> Created by </Th> <Td> Joe Ruby Ken Spears </Td> </Tr> <Tr> <Th> Original work </Th> <Td> Scooby - Doo, Where Are You! (1969--70) </Td> </Tr> <P> Scooby - Doo is an American animated franchise, comprising many animated television series produced from 1969 to the present day . Writers Joe Ruby and Ken Spears created the original series, Scooby - Doo, Where Are You!, for Hanna - Barbera Productions in 1969 . This Saturday - morning cartoon series featured four teenagers--Fred Jones, Daphne Blake, Velma Dinkley, and Norville "Shaggy" Rogers--and their talking brown Great Dane named Scooby - Doo, who solve mysteries involving supposedly supernatural creatures through a series of antics and missteps . </P> <P> Following the success of the original series, Hanna - Barbera and its successor Warner Bros. Animation have produced numerous follow - up and spin - off animated series and several related works, including television specials and made - for - TV movies, a line of direct - to - video films, and two Warner Bros.--produced theatrical feature films . Some versions of Scooby - Doo feature different variations on the show's supernatural theme, and include characters such as Scooby's cousin Scooby - Dum and nephew Scrappy - Doo in addition to or instead of some of the original characters . </P>

When was the first scooby doo show aired