Scooby-Doo had its first format change in 1972, Hanna-Barbera had produced three other teenager-based shows that were very similar to Scooby in concept and execution: Josie and the Pussycats (1970), which resurrected the idea of the rock band to the teenage-crime-fighter formula; The Pebbles and Bamm-Bamm Show (1971), which re-imagined the toddlers from The