Been offered a 'second user' Sky plus 160 box by a Sky engineer. He says if I install it I just need to ring Sky to 'pair up' the new box with my viewing card. 1. What happens if the box is stolen or blacklisted - as Im not sure of its origins. 2. I'm on the basic Family pack but Sky say I need two premium channels to be able to use Sky + functionality, but the engineer says this is rubbish. Can i at worst use the box as a hard drive recorder if I don't pay for premium channels and/or what functionality do I get if |I pay for premium channels ?