Here is a fun demonstration by the one and only Martha. Apparently back then the AGA may have even been a high price for the domestic diva. Word on the street (or in the comments of the video) is that she did the tutorial for free in exchange for an AGA. I just love seeing these old videos. She should come out with a collection of her early specials.
One more little find, here is a video of Kathryn Ireland (the designer not the model) giving a tour of her home. It's beautiful, I could move right in. Anyway, she has an AGA and while showing it off she actually spit on it! I can't believe she spit on it! She was trying to show how hot it was, but could she not have splashed some water on it or something! haha I got a chuckle out of it.