Hot Noodles over at TSWT.com
https://forums.thestarwarstrilogy.com/threads/ilm-disney-6-part-documentary.3214/page-4#post-64184

“Here’s a few screenshots of Light & Magic vs SSE. I simply did a screen recording of the documentary (using Quicktime) of the shots I wanted to get screen grabs from. Probably not as high-quality as other ways, but you still get the idea that they are different sources. The Silver Screen Edition cleaned up many or the marks and dirt that are so apparent on the documentary”