I was browsing a large store here in Portugal for a wall mount to fit my future Viera in and when I looked to a wall filled will Jvc, phillips, pioneer, sony and 2 Panny vieras (37'' and 42''), suddenly I saw the image all screwd up (massive flickering and superinposing) on the Pannys but ok on all others. Of course they were all being fed from the same source: Eric Clapton DVD, the other recommended dvds section to be more precise. However this just happened when in a dark background started to appear from left and right some Large characters (a dvd title i cannot remember). As soon as the the scene changed, they got back to normal. This happened to both of them and in sync while all others remained unafected. Any ideas as to what this is and how to solve it? Could this be "normal"? I know it afects more than one unit, maybe it afects them all. Any comments or advice are very appreciated.