Tonton Streaming The New Scooby-Doo Mysteries (1984) S1E20 - The 'Dooby Dooby Doo' Ado

The gang heads to Las Vegas's, Circus A Go-Go, to see cousin Dooby Dooby Doo in concert. It then seems that someone is out to steal kidnap Dooby and steal his fancy collar.