Hello community, I have a Westington 50' LCD TV and there are black/blue spots on the tv. Its not a video problem because when I turn off the TV I can still see it. At first it was a line and I thought it was a scratch so I googled a way to fix it and a video said that cardboard would erase it so I tried it and it worked. The "problem" has shrunk but the next hour or so the problem has spread. Is there any way I can solve this problem if so please reply. Thanks in advance.