SATELLITE TELEVISION ON PC DOWNLOAD - WHAT DO I REQUIRE TO VIEW TELEVISION ON MY PC?

A few days ago I was listening to XM Radio on the "80's on 8" station and the announcer stated from planet Earth. I laughed due to the fact that what he was actually stating is that all radio stations give you a call sign and then they say, what city they are from, but XM radio is a terrestrial satellite radio station and it beams at signal down to