1. Happy Birthday, Scooby-Doo Part 1
Aired: Sep 8, 1984Scooby-Doo's birthday is being celebrated with a surprise party, but things t...
The Mystery Inc. gang reunites Phyllis Diller's beloved dog, and in gratitude, she invites them to a séance at the enigmatic Magic Mansion. However, upon arrival, they discover that a mischievous gargoyle and two eerie phantoms are after her long-lost treasure.
Current Status: Ended
Network: ABC
Production Country: United States
Currently you are able to watch "The New Scooby-Doo Mysteries" streaming on HBO (Via Hulu) or for free with ads on Tubi TV.