Scooby-Doo, Where Are You!
From Super-wiki
Scooby-Doo - A long running cartoon series about four friends and a dog named Scooby-Doo who hunt down ghosts and the supernatural.
2.11 Playthings
Dean: Old-school haunted houses, you know? Fog, and secret passageways ... sissy British accents. Might even run into Fred and Daphne while we're inside. Mmm, Daphne. Love her.
3.01 The Magnificent Seven
Isaac: You guys seem nice enough, but, this ain't "Scooby-Doo," and we don't play well with others
4.03 In the Beginning
The VW van John Winchester nearly buys instead of the Impala is possibly a shoutout to the mode of transport known as the "Mystery Machine" used by the Scooby gang.
