What was that show?

[poltr1]

Somewhere in my mind is a vague memory of a Saturday morning kids' show where the Archie gang tries to out-Scooby the Scooby gang. They go and visit haunted houses, trying to look for ghosts. But they don't rip off the masks of the villains. Or maybe they were visiting friends of Sabrina the Teenage Witch. Did this show actually exist, or am I hallucinating?