The real issue is how big of your dish. The uk standard zone 1 dish is about 45cm, it is almost for Bsky and freeview only at 28.-28.5E. A 60cm economic disk now only costs £15-30, it is much cheaper than a receiver. Therfore, you have a good reason to update the dish to a good size, than you have much more options depend on where are living, which satellite you want watch. By the way, the installation is much more expensive if you want to contract the job to a 'specailist'. Of course, you can do it yourself providing the dish location is good and safe to access by yourself.