Chosen Solution
Why does the picture on my LG flat screen tv keeps blinking in and out?
Tim Horne if your display seems to be turning off and on repeatedly it is possible that this is caused by your backlight strips or a bad power supply (unlikely). We would need to see exactly how it behaves and what model it is. You can add a short video clip with your question which will allow us to see what you see. Use this Adding images to an existing question and add videos the same way you would add pictures.
