Cartoon mystery TV show for kids. The "gang" travel around in a colorfully painted van called "The
Mystery Machine" solving puzzles.
The gang consist of a
talking dog named Scooby Doo, a hippy named Shaggy, a short brainiac named Thelma and two others whose names escape me.
There was also an annoying puppy introduced into the series named "Scrappy Doo", evidentally placed there to try to extend the target audience to toddlers.
As a young boy I figured out early on that nine times out of ten the bad guy was the
first person the gang met.
The cartoon were made into two partly non-animated movies. The first one featured the great Rowan Atkinson.