I apologize since this is the O-027 high rail forum but i'm sure some of you like AF-S also.
If anyone has ROKU you can get the Howdy Doody app free and watch the December 24th 1952 show. It had a short about 10-15 minutes long taken at the Gilbert Hall Of Science which first half shows operating Erector models and followed by American Flyer S Gauge Trains operating on the showroom layout.