I took another look at the HDTV broadcasts of the 2004 transfer, and in some scenes the sharpening made by Lowry doesn't look that good. It worked once scaled down to DVD resolution, but in HD it gives the image too much of a "painted" effect. I hope the new transfers omit this sharpening...
Well, at least I think it's that sharpening Lowry talks about in the Saving Star Wars article (no edge enhancement artifacts, a desription that fits the way the HDTV broadcasts were sharpened).