Velma first meets Coco Diablo in “Trick or Treat Scooby-Doo”#Scoobydoohistory ... It will also be released on DVD on Oct. 18, according to Deadline.

Scooby-Do, Where Are You! The Complete Series includes all 41 Scooby-Doo episodes. Scooby-Doo originally aired in the late '60s and early '70s, featuring a mystery-solving dog named Scooby-Doo ...