@Gordon66 wrote:
Anyone else screen starting to get dark faded marks on the screen, visible when light colours on screen
This is probably what's known as DSE or Dirty Screen Effect. It's a symptom of poor backlight control on an LCD TV. Most cheaper LED backlit or edge-lit LCD TVs can suffer from it, and Glass is no exception.
Try and take some pictures of it at its worst and contact Sky. If your TV is still under warranty then you may be able to get a replacement.
