I'm a digital "newbie". What do I need to have DISH sattelite viewable on my PC monitor? I am getting DISH sattelite installed in two rooms, and would like one of those hookups to be my PC. I have a new Dell w/ NVIDEA 5200 video card. Monitor is a Dell ultrasharp with digital and analog input. Do I need a separate TV Tuner card? Any other advice or recommendations would be appreciated.