Oke, I'm going to do this in three separate posts.
The screencap I used as a reference does closely match the Technicolor IB print. Whether the print is accurate is a matter for debate. Interestingly, if you match the same frame for Harmy's Despecialized Edition to the reference the following result is obtained:
http://screenshotcomparison.com/comparison/138301
The match is pretty much exact, and there is a surprising amount of detail visible, simply because the frame from Harmy's Despecialized Edition is in better shape than the reference frame.