I have a standard sky box with a dish. I have a card which allows me to watch the freesat channels. ..I want to be able to record one channel, while watching another. Am I right in thinking that I would need either a Sky+ box, or a freesat+ box to accomplish this? I know I need two cables from the dish, that's not a problem, but can I just buy a sky+ or freesat+ box outright, without subscribing or anything like that? In short, I want to retain the freesat service, but be able to record one channel while watching another. Any advice greatly appreciated.