Went through this carry on with Sky a few months ago. I have a "spare" second box and wanted to get it all wired up. Needed the better LNB and the local aerial specialists wanted about £90 to get it all singing and dancing. Spoke to Mr. Murdochs' drones and they said "Give us £50 and we will give you a new box, upgrade the LNB to a four way one and then charge you ten quid a month for all of the exisiting channels on box 2"
When the Sky bod came to install, I pointed out the "spare" box and asked him how much I might have to cross his palm with to get it plumbed in as well. £20 later, I have 3 working Sky digiboxes! Pity that there is sod all worth watching on TV though... Still some things never change....
Conan