I remember these live-action intros to the Plastic Man Comedy/Adventure show being a bit awesomer than they actually come off today. But hey, it was the late 70s/early 80's -- and the special effects were pretty good for a low-budget kiddie show. Because of these intros -- played by a mysterious, IMDB-less "Taylor Marks" -- I always pictured Plas to have the voice of a Las Vegas Rat Packer. Or Don Adams. Okay, I have no idea what particular voice he was going for there.
Occasionally the live-action bits would incorporate very simple special effects -- like a tire painted to look like Plas, or this:
Anyway, a kid was pretty starved for new live-action superhero stuff in the early 1980s -- so this was awesome! I hoped he'd team up with the other DC characters for Legends of the Superheroes.