Spoiler Alert Ahead!!!
As someone who watched almost every episode of Scooby-Doo, I love how it features some of the old ghosts from the TV shows, in addition to a new ghost on top of that. I recognized almost every ghost there was and it definitely brought on the nostalgia.
As for the movie, it was family-friendly, entertaining, and comedic, especially in the scene where we see Scooby-Doo dancing and singing at the bar.
Here are some of the Tv Shows if you want to binge: Scooby-Doo, Where Are You?, A Pup Named Scooby-Doo, What's New Scooby-Doo, Be Cool Scooby-Doo, or Scooby-Doo Mystery Incorporated.