Earlier today, "A Pup Named Scooby-Doo" was added almost in its entirety to the Boomerang streaming service. All episodes from season 1 and 2 were added, in addition to two episodes from season 3, "Wrestle Maniacs" and "Horror of the Haunted Hairpiece." This just leaves 7 episodes of the series missing from the streaming service. The missing episodes include: "Night of the Boogey Biker," "Dawn of the Spooky Shuttle Scare," "Mayhem of the Moving Mollusk," "The Were-Doo of Doo Manor," "Catcher on the Sly," "The Ghost of Mrs. Shusham" and "The Wraith of Waitro." It is unknown when these remaining episodes will be available to watch on the service. If you choose to subscribe to the service, you can watch these new episodes among several other Scooby-Doo series and movies at Boomerang.com or through the Boomerang streaming app.