The New Scooby Doo Mysteries

The Dooby Dooby Doo Ado (1x19)

Air date: Nov 24, 1984

The gang heads to Las Vegas', Circus A Go-Go, tosee Scooby's cousin Dooby Doo in concert. Soon it seems someone is out to kidnap Dooby Doo and steal his fancy collar, which was a present form a fan in New yourk, so Scooby turns decoy with a fake collar. Looks like trouble!