Antwoord op "horizontal line across screen."My TV has several horizontal lines and the picture struggles to come into focus , but I've found that it's only when tv is cold. Something has warped a bit from being on constantly for thousands of hours. After 5 or so minutes it warms up and picture is fine. You can actually see it getting better as time progresses. If this happens when you turn it on, wait a half hour and see. I just keep it on constantly but when theres a storm and power fails for more than 30 minutes or I forget to turn it back on after, only time it happens. Actually waiting for it now.