Rudolph must find Happy, the baby new year, before the midnight of New Year's Eve.

There's intergalactic trouble when the lyrics Judy Jetson wrote for teen heartthrob Sky Rocker are swapped with a secret message from a music-hating witch. Now it's up to Judy, her family, and friends to save rock-and-roll.

The Scooby-Doo/Dynomutt Hour is a 60-minute package show produced by Hanna-Barbera Productions in 1976 for ABC Saturday mornings. It marked the first new installments of the cowardly canine since 1973, and contained the following segments: The Scooby-Doo Show and Dynomutt, Dog Wonder.

Les Episodes "Scooby-Doo" de cette saison 1 sont identiques à ceux de la saison 1 de "Le Scooby-Doo Show" The Scooby-Doo Show (1976)

Fred, Daphne, Velma, Shaggy, and the talking dog, Scooby-Doo, travel on the Mystery Machine van, in search of weird mysteries to solve.

Each episode of this series include multiple segments: The first and last were "Laff-A-Lympics" segments, the other ones were "Captain Caveman and the Teen Angels", "Scooby-Doo" and "Dynomutt" segments.

The "Laff-A-Lympics" segments feature 45 Hanna-Barbera cartoon characters (classic and otherwise) competing for gold medals in wacky events. Events include racing on ostriches, camels, kangaroos, rickshaws and unicycles, as well as scavenging for creatures like the Abominable Snowman, vampires, and the Loch Ness Monster.

Les épisodes de Scooby-Doo de cette saison sont identiques aux épisodes de "Le Scooby-Doo Show" (The Scooby-Doo Show 1976)