I had the PWD6UY and then had a problem with it and finally got Panasonic to replace it. Wasn't an easy process but anyways they did and it came yesterday. Well I checked everything over and made sure there were no scratches or anything on the glass and then set everything up. I noticed when I turned it on that the picture looked slightly different and that the screen door effect wasn't there even when I was standing right next to the screen. I checked and I couldn't believe it but they sent me the wrong model. They sent me the PHD6UY instead of the PWD6UY. The picture is actually great, very bright. Even SD tv to me looks better but I was very happy with the ED one too. I do notice the difference in the contrast between this one and the PWD but the gain in picture quality I think makes it worth it. My problem is I couldn't hear the old one buzzing at all unless I was listening at the back of the unit. This PHD one to me is quite noticeable when there's a quiet scene in a movie from even about 8 feet away. It's not wall mounted. They may not care and let me keep the HD since now it's used anyways, not my fault they sent the wrong one....but if I complain about the buzzing and have them exchange it odds are I'll probably get the ED again. I just can't make up my mind what to do. Anyone else having the buzzing problem with the HD unit? I noticed this one has a fan too and the ED didn't.