I got my 844 on Friday (4/13) and did the install this morning (4/14). After wall mounting the TV and testing out the functions, I noticed a blue line that went from the top of the screen to the bottom of the screen. It is approximately 16" from the edge.
Called the Video Store and said that they never saw this before. One of the store employees said that it could be caused by the wall mount screws pressing on the back of the panel. I said, I didn't think that was the case. When I got home, I checked the line...16" from the edge. Wall mount brackets are 24" from the edge.
In any case, they are replacing the set...after 1 day. My replacement gets delivered in 2 weeks due to my work schedule.
So question to the forum members, have you seen this on a Sharp, let alone a 844?