[MrForbes]

Here's the back of a 1959 RCA b/w portable TV with remote...the little chassis on the lower left corner is the electronics for it, and you'll see the motor at the top left that turns the tuner control around. One position of the tuner is "off". The only control is for channel, as far as I can tell. I don't have the remote for it, but I think it's ultrasonic.