1. Happy Birthday, Scooby-Doo Part 1
Aired: Sep 8, 1984It is Scooby's birthday and Shaggy, Daphne, and Scrappy Doo pretend to forget...
As the group returns Phyllis Diller's dog back to her enormous castle,they discover the mysteries within and save her precious jewelries from being robbed.
Current Status: Ended
Network: ABC
Production Country: United States
The New Scooby-Doo Mysteries: Where to Watch Online?
Currently you are able to watch "The New Scooby-Doo Mysteries" for free with ads on Tubi TV.