AndyMcKinney
Senior HTF Member
I can't speak for the animation, but all the filmed live-action produced by Filmation was shot on 16mm to save money. That is fact. The only non-16mm live-action was for shows like The Ghost Busters which were shot on videotape (to save even more money).
For shows like Fat Albert that had live-action mixed in with animation, if they were in mixed formats, I'm sure they were combined onto a single print (likely 16mm) for broadcast. Shazam!, Isis and all the other live-action shows were broadcast by CBS from 16mm.