I've got a spare Freeview box and would like to buy a cheapish PCI TV card for my bedroom comp, my question is ... Can I use the Freeview box with it? Reason I ask is, the Freeview box has 2 x scart sockets on the back, but I'm wondering if they are needed? can I use the Freeview box in conjunction with a TV card using just the co-ax in out sockets?