Scooby-Doo! Boo!
A Bicycle Built for Boo!
S1 E5:
Just as Shaggy departs on his newspaper delivery route, a ghost appears and steals Shaggy's bike! The gang's pursuit of clues leads them to a spooky mansion, where they confront the terrifying Gloppy Green Ghost. After further investigation, Scooby and the kids discover the lair of a counterfeiter.