This would seem to be like a magnetic problem, as if some lines were going from the sides of the TV toward the center away from the top and bottom. A drawing is needed to understand: Code: +---------------+ | /// \ | |---/// \---| |---// \---| |---\ //---| |---\ ///---| | \ /// | +---------------+ Of course there are more lines and they are more curved than the drawing above. Sort of like, back in elementary school, when they showed us basic physics with magnets and lead powder drawing lines on the sheet showing the magnetic field. It looks more or less like this pattern. The thing is, I only noticed these for about a week or 2, and the only things that changed is that I tweaked the service menu's V/H Size and V/H Position to reduce overscan and brought my SNES out of the closet to play some good old games (In CS5.1!!) I notice it more when playing SNES (The line pattern stay put) than when watching DVDs (In which case, the line pattern seems to flicker a bit) And is mainly noticable when the color is almost constant for most of the frame (When navigating through a cave in FF3 or when someone's head is in the middle with a constant background such as a wall behind). What causes this? And is there chances of permanent damage to my TV? The TV is question is a 4 year old Panasonic 27", the DVD player is routed to a Kenwood VR-509 for S-Video switching, the SNES is using Composite Cable (Again routed through receiver) But the receiver routing hasn't changed since I started noticing the problem so I doubt that is the cause. I have a pair of Paradigm Titans on each sides (about 2 feet from the TV) and a Paradigm CC-170 on top (But that one is shielded) but the speakers have been there since mid april so I would have noticed it by now if they were the cause.