Has anyone had any major problems with their HDTV sets? I own a first generation Mits 73" WS-73903. I turned it on the other day and no more picture. Nada. Zilch. No on screen menu's either, but there is sound. So, I guess it's service time. But Mits only has one authorized repair place in the area, and they don't sound very intelligent on the phone. We shall see. They are claiming they will need to "take it in". I want them to fix it in my place...they have no idea what it is going to take to get it out of my apartment. (I'm almost tempted to trouble shoot it myself since there is no warranty left anyway. With no picture at all, it can't be too hard to find the problem.) I wonder how many of these repair places actually know anything about HDTV's yet????