We have just had a return invitation for the same 3 months at half price or if no longer with a Sky box or your current box broken a free new one.
One question though, speaking as a complete dummy here, is it possible to have two boxes connected to the same dish and watch separate programmes, i.e. split the down lead like you can a normal RF lead.
You're asking for "multi-room". The engineer will fit a new LNB on the dish wich can feed a second box, and run cables to the second box. You can't split a single dish feed. Look for multi-room on the Sky website.
Thanks for that Nick, if it's not a too complicated answer, why can't you split a single dish feed, obviously it doesn't work in the same way as a normal terrestrial signal.
The box sends signals back up the cable to the dish to switch polarizations and to switch frequency bands. If the dish was switched to horizontal polarisation to watch a channel on TV "A", it would prevent TV "B" from picking up anything other than horizontal channels. The same would apply to high and low frequency band selections.