My tv has the satellite receiver built into it. It is a 12 volt tv with a power supply which plugs into the mains for running off the mains as an option. How would a decoder fit ito this kind of setup - before the receiver orwould I need a seperate receiver and decoder which plugs into the normal arial socket?

Addvice would be appreciated. Also, Nigel, how much just for the decoder? I can align the dish easily myself since I used to install satellite systems myself around 20 odd years ago before everything got complicated and the market expanded so much.

Thanks in advance,
John.