I have been using Sky digital without any problems for a couple of years. However, over the past 2 or 3 months, channels are disappearing (No satellite signal is being received). Nothing has changed in the setup as far as I can see. For the moment, I have lost all movies, sports and several in the Entertainment category. But, Signal Strength is around 90% and quality at around 70 - 75% which is the best it has been for a long time. I am not living in the UK, so don't particularly want to contact Sky for this. Anyone any ideas?