On Tuesday, April 28, 2015 at 1:03:40 PM UTC-7, wrote:
Leif: Read the article again: https://books.google.com/books?id=Cg...ence%22&f=true


You're not getting what VIR *also* did.

It also internally adjusted the picture controls to
proper levels, regardless of how the kid screwed
up the knobs on dad's new 25" console.

That's all well and good but VIR applied to analog TV broadcasting which was turned off - permanently (YEA) - in June 2009. VIR had a preset amplitude and phase (hue) subcarrier riding on a defined amplitude pedestal to set brightness, contrast hue and saturation and nothing more. Keep in mind that this does NOTHING about bias and gain on the display (back then CRT) device.. How your TV was aligned was up to you and your repair tech.

That's ALL that VIR could and did do.

G²