Empire of Dreams is different. I don’t have a comprehensive list but the one example I know of for sure is that the Anthony Daniels is talking about George waddling during the filming of ROTJ and they walk up to Jabba’s palace they replaced the original shot with the 2011 shot with the expanded door.
JEDIT:
One other obvious change is when they talk about Williams recording the music for ANH they replaced the original shots with the SE shots. It seems whenever they show clips from the movie it’s all the 2011 master
I assume it’s in HD? The simple assumption is that if they did an HD version of it that they were using the HD versions.