Watching all the shows back-to-back reveals evolving complexity in the scripts. Over time, Scooby-Doo's creators added multiple bad guys in cahoots with major villains, and developed sub-plots, backstories, and even appealing allies and friends of Mystery, Inc., a traveling band of young debunkers of supernatural phenomena. Riding around in their psychedelic Mystery Van, preppie leader Fred and his friends--haughty Daphne, brainy Velma, quasi-hippie Shaggy, and Shaggy's best pal, Scooby, an excitable Great Dane--chase down and are chased by alleged ghouls who generally turn out to be venal humans running various scams.

Included here is Scooby-Doo's premiere, "What a Night for a Knight," in which the gang looks into the disappearance of a noted archaeologist and end up in a "haunted" museum. The fun "Go Away Ghost Ship" finds our heroes helping a shipping company daunted by the apparent ghost of pirate Red Beard, while the silly classic "A Tiki Scare Is No Fair" concerns a Hawaiian vacation for Mystery, Inc. disrupted by a witch doctor. --Tom Keogh