I originall had a Sky+ Box but that went faulty and I got a replacement Sky HD box instead. However even watching the new box via HDMI I still prefer the the picture via Scart (!). So I got a Sky+ box from Ebay and want to pair it with my existing card. What is the easiest way to do this? Please note the this not a scam tying to get multiroom on the cheap, or a second box with reduced functionality for another room.. I will only use one card and one box. Any advice gratefully received.