I recently bought the HD version of the TWOK DE from iTunes, and that brought up one question:
When the DE was released on DVD, has it been mastered in HD and then downscaled to DVD? If that's the case, then I guess that iTunes has the HD master from back then.
Or is it the other way around? Was the movie mastered in SD back then, and has been upscaled for iTunes?
I doesn't look bad at all, definitely better than the SD version, so it might be genuine HD. But I can't say for sure. I'd say it definitely comes from the same master, though.