1954 NTSC “Correct” Video.

[old_tv_nut]

You must be referring to this:
https://www.earlytelevision.org/2007...on_reitan.html

I think Ed's statement about this representing the actual color as seen on sets at the time was very wishful thinking.
First of all, it wasn't videotape but a color kinescope film, which would not have exhibited accurate color even when brand new.
Second, it was a Da Vinci restoration from scanning a badly faded color kinescope film, so the reproduction would be adjusted by eye rather than to a test pattern.

But wait, you say, maybe the film had colorbars or something known? Well, a color kinescope film could not possibly reproduce the bright, pure colors of a test pattern. If the restoration were adjusted to do that, all the more subtle colors, like flesh tones, would be unacceptably off.

So, the color in this demo may have been subjectively very good, but it would have had little accuracy in reproducing the original live viewing experience.