Oh blimey, don't fill me with fear!
I've just managed to get a Sky+ install booked for my parents (they live in a non-cabled area), along with Multiroom to move their existing box. The appointment has been booked through their website, for December 24th! And it's going to be a fun one - the house has a very odd layout...
Assuming the installer does turn up, I shall have to ply them with mince pies!