I'm interested in getting a box so I can watch the various free to air channels. Because my house is close to a listed building, I can't have an external aerial. The Freeview site says I can get coverage, and the loft aerial produces a great picture on the 4 main channels (can't get C5 with it though). What I'd ideally like to do is buy a box to see if it works. If it does, great, I'll keep it. If not, I'll return it, and see about replacing the aerial before trying again. I notice that Argos have a range of boxes, but they say that they are excluded from their 16 day money back guarantee. So does anyone know where I can buy a box from and return it if it doesn't pick up the channels?