@GrandTheftWalrus when my sky box does that I have to plug it out for about ten minutes, then plug in and it restarts itself, when prompted to push the home button and wait a few seconds it kicks back in as normal.
You never know but it's worth a try.
I'm at my wits end with sky, my monthly payment is ridiculous, broadband and telly and also a land line that doesnt work, when I try get in touch I get a robot asking the same questions over and over again.