We talked briefly about the apparently overly saturated colors of the sets and lighting in the remastered versions.
In "Tomorrow is Yesterday", the Air Force Uniforms are purple (or at least an unlikely shade of royal blue)! This is a new one for me, as everything else in those scenes look perfectly fine.
NBC was not called the Peacock network for nothing. RCA owned in whole or a majority of NBC who had the newly released color televisions to sell when Star Trek debuted.
1966 (in the fall) was the year that all three networks' prime time shows were all in color. The previous year was the year that ABC and CBS caved in to NBC's pressure and began airing a number of their shows in color, and NBC itself, if Wikipedia's schedule table is accurate, had only two prime time shows in B&W, the new shows I Dream of Jeannie and Convoy -- with those events it was soon clear that the all-color move in 1966 was inevitable. The year before that, 1964, with ABC and CBS still resisting, NBC made the boast that "more than 50% of their schedule" was in color, though I don't know if that covered the entire day, or just prime time; or whether reckoned only by program-list, or airtime, or both.
A little OT: Twelve O'Clock High's first two seasons where in B&W, the third one in color. Watching them now, the B&W episodes were much better. After watching 2 years in B&W, it is just too jarring to watch season three.
At the end of "The Alternative Factor", Kirk and Spock are discussing what happened. In the long shot showing both, Spock's tunic is an unnaturally light baby blue. But it's definitely blue. In the close-ups, it's purple.
Why this occurs, I don't know, but there's no question about it.
Purple is not the same hue as blue. Increasing or decreasing saturation should not have any effect on a color's hue.
A flag looking like a US cavalry regimental standard from that era is seen in several scenes. From about 1834 to about 1895 the design of a US cavalry regimental standard was 2 feet 3 inches vertical and 2 feet 5 inches horizontal, of blue silk with a yellow fringe, and had a version of the USA coat of arms and beneath the eagle a red scroll with the name and number of the regiment in gold.
The blue flags with eagles are cavalry standards from the period and the yellow flags with eagles are later cavalry standards.
A battle scene near the end of "Massacre" that was used in several western movies has a blue cavalry standard that is about the correct color.
Nobody knows the fate of the regimental standard of the 7th US cavalry in the Sioux campaign of 1876. It might have been left behind at Fort Abraham Lincoln in May, or left behind at the Powder River depot on June 22 when the 7th cavalry left, or carried in the regimental pack train on June 25 and so preserved, or carried in the headquarters group of the 7th cavalry, it's proper place, on June 25 and so captured by the Sioux in Custer's Last Stand.
The prop standard used in "Massacre" doesn't look blue, being sort of purple or pinkish in various shots. Maybe the dyes used to color the prop flag faded and changed color after years of use and storage. Maybe the flag was photographed incorrectly which made it seem the wrong color - though the blue cavalry uniforms looked right.
Anyway, this is a sort of a similar problem to the bad uniform colors in TOS