I have Sky+, non-HD. The dish is at least 7 years old. The box is kust over 5 years old. I have a signal issue with various channels, mainly the "five" channels (five, fiver, five usa, etc), plus others like Eurosport, Bravo, Virgin, Alibi & CBS drama. If I watch any of these channels in isolation then usually everything is fine. If I watch one of these channels whilst recording from another OR I record one of these channels (whether watching or recording another channel at the same time), I get a terribly broken signal. The picture will pixilate and there will be loss and/or jumping of audio, rendering the program unwatchable. Generally, the signal strength and quality on both inputs is ok, even when the problem manifests itself. This has been going on for months now. Any ideas, before I call an engineer?