Forgive me if this seems a foolish question, but I've always been more of an expert on software, rather than hardware, when it comes to DVD. In regards to television shows that were filmed prior to HD, and assuming that any HD release of same hasn't undergone some "digital remastering" trickery to clean up an image from a subpar master, is there any reason to think that a HD-DVD release will look measurably/markedly better than the standard DVD version? This thought came to me as I was perusing my THREE'S COMPANY: Season Six discs. The image is pretty sketchy and murky in that '70s "videotaped before a live studio audience" kind of way--this is no reflection of poorly mastered DVDs, it's just as good as the original recording can be made to look...on standard definition DVD, that is. But is there any reason to believe that HD-DVD can render a better image out of something recorded in such a low-res manner in the first place?