Hi.
The easy way is to ask you Neighbor what he is receiving.
If you like his programs can you may be ask him if you also can connect to his dishes.
If he use LNB with 1 output can you offer him to bay some with 2 outputs?
If he use LNB with 2 output can you offer him to bay some with 4 outputs?
If he use LNB with 4 output can you offer him to bay some with 8 outputs?
And may be he also will like a new SAT receiver, but it will still be cheaper than to install your own dishes.
Carsten.