scooby doo old cartoons - Bing Images. This cartoon is still actually on! The gang and the mystery machine. In the beginning it was all so innocent and when there was a mystery, it was all explained, which was great for kids so they could think of who was behind it and then find out in the end. Scooby loved his scooby snacks and Shaggy was so lovable. I watched a cartoon movie not long ago and the themes had gotten a lot darker. Ugg!