Upon seeing an episode of The Brady Bunch, my kids were baffled by the ice cube tray that had to be filled up with water.
Lol. I was amused at the episode that I saw a few years ago where they had a competition over their Green Stamps (or equivalent) and what to buy.
The girls wanted a sewing machine, and I forget what the boys wanted. But in the end, the parents traded them in for a color TV. Greg Brady shouted at the end: "A TV set! A COLOR TV set!"