Scooby-Doo and Scrappy-Doo (1979 TV series)
[4] It was the last Hanna-Barbera cartoon series (excluding prime-time specials) to use the studio's laugh track.By 1979, the staff at Hanna-Barbera realized that the Scooby-Doo formula was getting worn out, which gave them reason to parody it in a 1979 primetime special, Scooby Goes Hollywood, which was produced and finished before the series aired in September 1979.Marla Frumkin took over Pat Stevens' role as Velma Dinkley towards the end of the season, beginning with episode 12, "The Ghoul, the Bat, and the Ugly".[citation needed] The gang is trapped inside a theme park created to be like 19th-century London and soon find themselves under attack by its robot residents while exploring Velma's fantasy of solving a mystery with Sherlock Holmes regarding the Midnight Ghoul targeting the Crown Jewels.While the gang tries to relax on a camping trip in the mountains, Scooby, Scrappy and Shaggy are kidnapped by an alien and it is up to Fred, Velma and Daphne to save them.