Alan, the BBC channel are fta - if you arent receiving them, something isnt set up correctly - Im watching BBC 1 on my Echostar at the moment. Try rescanning the BBC frequencies. ITV, ITV 2, C4 & C5 are scrambled as rolf said - if you wnat these you mUST have a
Sky Digibox.
BTW - The BBC are on Astra 2D which has a restrioted footprint, so if you are outside the uk you may struggle to get it.