This Scooby-Doo t-shirt features a collage of the many incarnations of the famous animated Great Dane, followed by the words "Since 1969". The Hanna-Barbera cartoon "Scooby-Doo, Where Are You!" first premiered on September 13, 1969, and ran for two seasons. Since then, the franchise has evolved into a number of animated television series, movies, and merchandise. Don't find yourself saying, "Ruh-roh!"—get this Pop Art Scooby-Doo T-Shirt so everyone knows you're a fan!