I grew up watching Scooby and my kids love it 35 years later.
Scooby and Shaggy consistently make my children laugh. They can sit through an hour movie without fidgeting. They like to imitate how Scooby and Shaggy talk and they tease about scooby snacks. They giggle loudly when Scooby acts out what the bad guys look like or sound like. The baby likes to brush her teeth while I sing the theme song to her...with her Scooby toothbrush of course.
Scooby Dooby Doo where are you...still going strong after all these years.