I'm wondering if anyone else has this issue or can think of anything that might be up. Every so often, it can happen 2-3 times in an hour I get a completely blue screen for about a second and then the picture comes back fine. I have the sound through my amp and the sound doesn't miss a beat via optical or via a Blu-Ray but i watched an hour of a blu the other night and didn't notice it but sometimes I can watch it for an hour or two and not see it at all. This is via my Sky+HD box. I've double checked all the connections and they're fine and i don't get the on screen display in the top left when it tells you what sort of signal it's getting either so would I be right in suspecting my HD box or does anyone have any other insight?