Sorry if this has been covered, I couldn't find it on a search.

How does the quality of HD DVD compare to HD on Cable? I know it depends on the movie etc., I'm just looking for overall.

There is a big difference on my 65" screen between standard dvd's and cable 480i digital, so I was wondering if there was a difference like that between HD disks and HD cable. Probably not would be my guess because it's hard to imagine the quality improving that much.