Early color required a touch most customers didn't have.

[quadrazontil]

I had an elderly Aunt that had what seem to remember as an early Sony trinitron. After a few years it has drifted a bit and badly needed some small touch up adjustments for color and tint. The flesh was getting a little purple and the color saturation was getting a little strong.

But she absolutely refused to let me touch it. She treated the front panel user controls as sacred and insisted they must be left where they were originally. She would only touch the volume and channel controls. The set stayed that way until the day she died.