I've ordered Sky+...
 

....and I've currently got a digibox which I've had for over 2 years.

When the engineer comes, will he just replace the LNB or will he put a brand
new dish up? I'd like to maybe give my box to my mother as she has a very
poor analogue reception and I reckon I can put the dish up myself and get a
FTV (or is it FTA?) card.

The way I see it is the box (and the dish?) belong to me as I've subscribed
for over the 12 month minimum, so I can do with it what I like.

Is that correct?

TIA