The current setup in our household is: Two separate SD Sky boxes with Freesat from Sky, both from the same dish and with their own viewing cards. These aren't on, and have never been on, a Sky subscription. Currently connected to their TVs - one with SCART and the other by component cable. Both TVs have HDMI ports and are HD/HD Ready respecitvely. We'd like to be able to: Watch all our current SD Freesat from Sky channels, plus the free HD ones (mainly BBC1 and C4). Could I do the following: Buy a couple of second hand Sky+ HD boxes off eBay (they seem to be available for around £20 each), and just replace the SD boxes with these, changing the cables over to HDMI? I assume people sell them without any viewing card included. Would the HD boxes even need a card (we live in Scotland if this matters, and would prefer the regional versions of channels), and if so can the existing ones in the SD boxes be used? I've heard you can just phone Sky and ask them to pair them up somehow - no subscription required? I know we wouldn't be able to record anything using the Sky box without a subscription, and that's fine. But would like to set up basic HD for a couple of channels as easily and cheaply as possible. Thanks for any help or clarification you can offer.