HI. I hope someone can answer this question for me please. I read a review of the Hitachi PD5200 recently and the reviewer stated that when fed a progressive signal, the picture quality was fantastic. I'm a little confused, as I understand all Hitachi's screens are ALIS based, which means they output an interlaced display. So how does a progressive feed improve the PQ if the panel is interlacing the feed? Any help in answering this puzzle gratefully received.