How to connect DSR-421 BNM (General Instr.Corp-U.S.A.)

I want to play this satellite receiver,I am reporting it's detail here:

Model: DSR-421 BNM
FCC ID: F2NDSr421R
Satellite Receiver Canada
120V only
Listed 75KB
E98758
60Hz 60W


I have seen a cable socket of 5+4 wires on back,what this meant for?
Which type of Dish it favor best?How can I connect it to my PC and
TV?Does any program/software required for running it?Can I dowload it
free?
What other accessories required for it's set-up/connection?
What Stations can be received via this instrument?Who regulates this
Satellite Programs?


Thanks in advance,waiting earliest reply?