I used to have a Sky subscription and being based in Northern Ireland was able to watch RTÉ channels, I can see the channels have been scanned and detected in my channel list, and also see the EPG for the channels. However, when I zap to the channels, they are just black screen. Are they encoded/scrambled? I was told they are free to view channels and are on Saorsat for free, so why can't I view them using my OpenVIX box?