I did some further tests using a screenshot posted by Mike Verta as a basis. That screenshot was somewhat green shifted, so I first corrected that:
http://screenshotcomparison.com/comparison/138895
I calibrated the color adjustment model on this frame.
Reference versus corrected:
http://screenshotcomparison.com/comparison/138896
Before versus after:
http://screenshotcomparison.com/comparison/138897
Then I used the color correction model to correct three other Tantive IV frames:
http://screenshotcomparison.com/comparison/138898