All this talk about the colored plastic strips has got me thinking of something else. Back in the B&W TV days there was a kid's program on Sat morning where you put a piece of plastic on the screen and then used crayons to draw on it. It was an interactive cartoon where you helped the hero escape by drawing a ladder or a parachute or whatever he needed. Does anybody remember the name of the program? I think this was in the early 50's. It sticks in my head that this was Tom Terrific with Mighty Manfried the Wonder Dog and the Villan was Rotty Appleton "rotten to the core", but I think I'm getting two shows mixed up. HarryB