We are having a problem with Beth's tv. When we turn it on sometimes we only get sound and no picture. We need to turn it on and off a few times to get the picture. We also sometimes have it turn off completely when she has a DVD on. We have checked all scary leads as she watches sky multi room on it and they are fine. I do not want to rush out and buy a new tv incase it's the sky although thinking not. Does anyone have any ideas what it could be. It's only 3 years old.