It's a Scooby Doo episode
No, The Blair Witch Project is not. However, <b>The Scream Trilogy</b> is a Scooby Doo episode/s. Think about it, the searching for the "villian." The unmasking of the villian at the end. They might as well have said, "Zoiks! It's Mr. Barber the school janitor whose been killing us off one by one!" and his reply: "And I would have gotten away with it if it weren't for you meddling kids."
The Scream Trilogy? all the way.