I have a VT50 which I've been enjoying since the summer but recently noticed that, while watching Hockey, I can see two small regions on the right and left edges of the screen that have a slight yellow or green tint to them. I probably would never have picked up on it if it weren't for that predominant white of the ice on the screen. It's actually fairly subtle and probably wouldn't translate in a photo but is hard to un-see once noticed. It somewhat reminds me of what my old projection TV looked like when it was on it's last legs. It certainly doesn't bother me as is but am concerned that it may be an indicator of things to come. Any ideas of what that might be?