The RG-59 coaxial cable that was commonly used for regular television in many houses is a different grade than the RG-6 coaxial cable used to connect to DirecTV satellite dishes these days. I'm told that the RG-6 cable needs to be of a higher grade to carry power to the LNB of the dish itself, and that RG-59 will either not work or will melt through its insulation if you try.

Additionally, you can't just use a passive Y-splitter to connect multiple tuner boxes to satellite dishes, the way you could with regular TV cable. Instead, you need an active electronic device known as a multiplexer (sometimes mis-referred to as a 'splitter' by people talking about satellite dish installations).

And, of course, you need a receiver (tuner box) in each location you want to watch satellite TV.

Other than that, it's exactly the same as TV cable.