May contain nonsense.
Apropos of my discussion of orthodox science fiction, it strikes me that one way to understand the complex philosophical discourse that is Scooby Doo is as a form of orthodox sci-fi. Consider that the key theme of the show (other than a healthy distrust of property developers) is that everything supernatural has perfectly normal explanations. Every plot (the recent films not withstanding) revolves directly around the sceptical enquiry into the paranormal, which is then exposed as a fraud. Seen in this way, Scooby Do (depending upon one’s leanings) is either a heroic bastion of reason or ideologically-driven propaganda.