(via Mental Floss) Since 1969, a Great Dane dog named Scooby (full name Scoobert), his loyal human companion Shaggy, and three of their teenaged friends have been on TV in many configurations, using a vehicle called the Mystery Machine to solve mysteries. Ken Spears and Joe Ruby created the Hanna-Barbera show and have watched it go through more than a dozen different series, including A Pup Named Scooby-Doo, The 13 Ghosts of Scooby-Doo, and Be Cool, Scooby-Doo!. Besides all of the TV shows, the show spun off into several TV specials, two live-action movies, 25 direct-to-DVD movies, and more than 20 video games. Here are some facts about Scooby-Doo, which made its original premiere on September 13, 1969.