Similarly, "Supernatural: The Animation" was put to rest after one season before becoming a forgotten memory -- like the many spirits Sam and Dean encounter while traveling America's haunted hotspots.

One early story for Sam Winchester on Supernatural felt a lot like another character's main story arc from the first season of Buffy’s spinoff Angel.

Supernatural Review: Sam’s First Kiss! By: Sean McKenna Published: October 8, 2011 · 6:10 AM EDT ...