So two years ago I bought a Zenith 50 inch HD Plasma that seemed like a steal at the time. To this day it has great reviews, all LG Parts, (normally) fantastic picture. Sleek appearance. $700! No complaints, right? Until recently that is. I have begun to notice that at times there are these three faint squiggly lines that appear across the screen sort of near the top. Often times they are not visible at all, many times they are only faintly visible, but sometimes they are distractingly obvious. So to cut to the chase, is there anything I can do about this? Or do I simply live with it or have to get a new TV??? Thanks in advance!