I believe you would lose the "package" you must take when opting for Sky HD, you then would also lose the recording feature and not every programme is HD johnny, are you currently a Sky subscriber? because if you are, installation is not free to you, and for taking the offer of HD you have to pay �10 per month just for the box, I used to have to do that when I took Sky+ but now that has been dropped so I will wait to see if they do the same with Sky HD, it's a flaming rip-off, I think the package may have to include your Broadband, tele package and phone-line, I hope this helps you a little johnny