Much harder, but not impossible to burn in. I recommend keeping the contrast for direct-views under one half. Especially when watching hockey or other bright programs, burn in can happen faster. If the other problems with the TV are still there, don't talk about the burn in and maybe the...
These lines at the 4:3 boundary are not squiggly and not moving in any direction? Looks like burn in to me. The only way to fix it is to replace the picture tube(s). You should have turnedt he contrast way down and kept it that way. (Less than a third for a projection TV) Also, if your...