Action For Children's Television

Action For Children's Television, or ACT, was a group organized by Peggy Charren in 1968. These concerned parents were distressed by the violence in Saturday morning cartoons of the late 1960s, which included all of Hanna-Barbera's superhero cartoons. Hanna and Barbera discussed the matter with Charren, and agreed to change the format of their cartoons. In the fall of 1968, Birdman and the Galaxy Trio, Young Samson and Goliath, Space Ghost and Dino Boy and Frankenstein Jr and the Impossibles were all cancelled. They were replaced by The Wacky Races and The Banana Splits Adventure Hour, which combined adventure with comedy, as did The Adventures of Gulliver on ABC. A year later, The Herculoids, Shazzan, and Moby Dick and Mighty Mightor were cancelled, and replaced by Scooby-Doo, Where are You!, The Perils of Penelope Pitstop, and Dastardly and Muttley in Their Flying Machines. A few months later, The Fantastic Four was the last Hanna-Barbera superhero show to be removed from Saturday morning broadcasts. 
Peggy Charren passed away on 22 January 2015, but ACT is still very active today.