Since it's inception in 1969, Scooby Doo has gone on to become one of, if not the most, iconic cartoon characters of all time. The show has had many iterations and plot line changes, there have been (pretty bad) movies made about the Scooby Gang, and the show has spawned a fairly significant fortune in merchandise and other paraphernalia. As much as we would all like to think we know the show and its characters like the back of our hands, there is a lot about them that just isn't as publicly known. Here are 10 facts about Scooby Doo