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Originally Posted by old_tv_nut
Here's a long reply, so take a break first, sit down with a drink and a snack, and read on!  |
Thanks for the warning......I was beginning to prairie dog before I read your post!
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The change in white color over the years is also worth mentioning. The NTSC settled on Illuminant C, an approximation to the light from an overcast day. (The modern equivalent is D65.) Nearly all sets from the earliest 21-inch RCAs onward, however, went to 9300 degrees Kelvin, which is quite blue. (Some had another preferred setting, but it typically wasn't Illuminant C.) This was partially a result of matching the black and white sets that people had gotten used to, partially to make the whites look "whiter", perhaps partially because 9300K is what you could get with reasonable current ratios for the three guns, and perhaps because the reds, yellows, etc really look brightly saturated when compared to a bluish white. The drawback is that color errors in fleshtones are exaggerated. One thing that drives videophiles crazy today is that some manufacturers still set the white point quite blue.
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This brings up something I've always noticed......you ever go by someone's house or apartment at night and see a darkened room lit by the TV? It's always blue light with flashes of color as the scene changes. It was the same way with B&W sets. Go figger. Thanks for the great post BTW!
Anthony