I've previously suggested Daphne from Scooby Doo is Columbo's niece. I remember someone wrote a fic where Shaggy was a 'nam vet, that his eating was due to going into starvation out there.

There's a reason Frank Castle will at least listen to what Norville Roberts says. And every once and a while, Specialist Roberts deals with things.

Mystery Inc. Crew are mad respected. Fred was in Angel Grove on the Day of Destruction. People are alive because of his traps.