I have a 51 inch plasma tv from Samsung which I am worried has my pc taskbar burnt in. (Model No. PS51F4500). It came with the contrast level 100 and brightness level 100. I never bothered with that and have been using my pc on it since almost an year. Out of the 365 days of an year i played like 300ish days daily and the tv was maily used for the pc and rarely someone watched cable. Now I was switching to a monitor when I read about burn in and then I ran a burn in reducing test for 1.5 hours. 1 .25 hour at brightness and contrast 45 45 and the rest 25 min on brightness and contrass 90 90. The date from my taskbar still appears in the corner faintly when a bright white background is viewed. Now I have reduced the contrast and brightness to 45 45 and use my tv on that. So the question I wanted to ask is that should I be worried or will this go away? And if I run burn in reducing videos should they be at full brightness and contrast or half? Thanks.