Finally succumbed and had the new sky box installed today. Not without incident, ondemand still not working as the tech couldn't get it to connect to the Internet, and it's still not as they said they'd 'call me'. Sorry that was an aside.
Now trying to get it connected to the media pc so can start recording (as per the old box which I've been doing for years). I can connect via the composite out rca connections and get analog out. However I've now got the HD ticket and am wondering how I can get an HD digital signal out and into a DVB-T capture card maybe??
Would I need to split the hdmi out, given I'd like to keep the hdmi from the sky box connected directly to the TV for direct pass through for watching at times as well?
Any ideas greatly appreciated.