Scooby-Doo and the Scooby Gang have been solving mysteries in one form or another since 1969 when the media company Hanna Barbera Productions first put them on television. Originally marketed as a kids show, generations of Scooby-Doo fans have remained loyal to the dog who's really a scaredy cat and his mystery-solving human companions. The Scooby Gang have roamed around in the Mystery Machine, looking for clues and solving mysteries for decades, as well as starred in two live-action films.