Clue Club (Hanna-Barbera, 1976)
More like Clone Club, if I'm being honest
Scooby Mania meant networks wanted more teens solving mysteries, and Hanna-Barbera were happy to oblige with many, many shows over the course of the 1970s that tried to recapture the success of the Meddling Kids formula. Clue Club was one right in the middle of the road of this trend in terms of storytelling quality, and our hosts wind up mildly split on it while simultaneously dreading the worse mystery shows yet to come.