On Friday, October 9, 2015 at 11:27:00 AM UTC-4, Mark Lloyd wrote:
On 10/08/2015 01:40 PM, micky wrote:

[snip]

"This program has been brought to you in compatible color"

which I didn't understand for another 30 years. Compatible meaning
black & white sets could understand it and show the picture in black and
white, and the opposite too, which iirc meant when they sent a black and
white show in compatible color, the color sets would render it in black
and white.

A color TV is capable of displaying a black and white picture. It checks
for the color signal and works in black and white if there is none,
using a circuit which I seem to remember being called a "color killer".

"compatible color" would be needed when an old black and white TV gets a
color signal.


IDK what "compatible color" means. The color broadcasting system was
designed so that a color broadcast would display as black and white on
the millions of bw sets out there at the time. The color part was
a compatible addition to what was already there.