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The middle shot (file name ending in "levels") has the levels corrections the same as all the other shots with file name ending in "levels." So, the gray scale is corrected (mostly) the same as the Bisquick "levels" correction. All of these seem to reproduce the blues too greenish, as you can see on the test pattern. Is this due to the film's reaction to the CBS blue primary? I don't know.
There could be a hue shift due to carry over of successive images due to lag in the image orthicon. In fact, the CBS color sequence was red, blue, green, so camera lag would produce the direction of shift shown in the test pattern - reds become mixed with a little blue, blues with a little green, green becomes yellower, yellow shifts towards orange. From the eyewitness report I have heard, though, color was very good, so it is hard to believe that the shifts were as large as shown here - but just maybe it's possible.
We can't know what color the curtain behind the people was, can only guess that the correction of the test pattern is also right for the live scene.
Of course, there is no subcarrier and therefore no quadrature adjustment in the CBS system.
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