I recall my mom taking us to a home show, about 1958, at our local YMCA and there was one. They showed how fast a hot dog can be cooked. To the 7 year old me, it was magic!
My wife & I bought a microwave in the 70’s. They offered free microwave cooking classes.
After about a month we attended our first class. They went around the room asking couples what they had cooked with their new microwaves. Half the class hadn’t done anything with theirs. The rest had warmed up water or something like that.
We were the last couple to respond. We had cooked a turkey with stuffing and a casserole. It turned out delicious. The teacher said we should be teaching the class.