i am paying for the rock bottom dishnet. I keep hearing about pansat 2500 or 2700 and other receivers.I don't know anything about all this autoscroll or any of the other mumbo jumbo.What do I need if I want to get all channels available?Will just buying a pansat2700 be all I need to do or is there more stuff neede? sorry but I'm new to all this satelit stuff.Longtime cable guy here.Don't get nasty,just anwer if you would.I can be abused anywhere,so be nice!plzzzzzz