: Reviewers from IMDb note that this episode established the classic "monster unmasking" formula that would define the series for decades.
: While exploring, they stumble upon an art forgery ring where authentic museum pieces were being replaced with fakes. The Unmasking [S1E1] What a Night for a Knight
: The first-ever line spoken in the franchise comes from Shaggy: "What a nervous night to be walking home from the movies, Scooby-Doo" . : Reviewers from IMDb note that this episode
is the pilot episode of the legendary animated series Scooby-Doo, Where Are You! , marking the first appearance of the Mystery Inc. gang. It originally aired on September 13, 1969. The Mystery is the pilot episode of the legendary animated
: The team finds a unique pair of glasses belonging to the missing professor, which leads them to realize the glasses are only found in England.