I don't have a TV, only a few monitors (it's very liberating, actually). So instead I'll talk about my microwave. Yes, unironically! :D It has two dials. OMG how do I survive with only two dials? How do I program it? Well, the answer is, unsurprisingly, that I don't program it. Instead I crank it to watever wattage I need (usually the top one), and the time I think it'll take until the food I becomes hot. Aaaand that…
I've never got the meme about numpads on microwaves being needlessly complicated design. On about any decent microwave made in the last 10 year, pushing 1-6 gives a cook time of 1-6 minutes, respectively. Pushing start again after cooking has started will add 30 seconds. For longer cook times, press "time cook." Maybe this sounds a bit complicated, but it's efficient and all written down on the keypad . Mechanical ti…
From your own post, it's more complicated already. With wheel/knob, you have an interface for time and another for power. A little twist means a short value, a long twist means a high value. If you know what you want to do, you already know how to use this microwaves.
I think the problem is it's slightly harder to use, eg you need to understand that more food needs more time to heat, that different cooking needs different power, etc. But you learn as you go.
I think the equivalent for a car would be to have a buttons for 'fast', 'medium', 'slow', 'bumpy terrain', 'road','long trip', 'short trip'. How crazy would that be?