[jroberts500]

It was a round 21" color. It was the only one I have ever seen but I saw an advertisement for Motorola's first retangular 23" that had the same knob layout. It had a 6BK4 and I could be wrong but I think even the UHF tuner had a tube.
The channel knobs were like 4" or more in diameter for the clear part that had black numbers printed on the back of the clear part with black lines between the numbers(I think I remember that correct). There was a stylish, goldish, metal knob in the center to turn it. The biggest knobs I ever saw!
It had large color and hue knobs with color scales around them.