However if it's more than a few years old, the usual fix is to replace the panel. Hope it's under warranty.
My tv has a greenish cloud across the middle of the screen. Is there anything I can do to fix this. I have tried a factory reset unplugging tv
I'm very sorry for any inconvenience this may have caused you. This sounds like it may need servicing. Here's the thread where you can get details on setting that up: http://forums.cnet.com/7723-13973_102-542437/service-issues-click-here-for-help/