Do I need a bband converter? I have a satellite with one round white thing with four cables coming from it, it says slimline on it (3 lnb I think). I have a hr22-100 HD DVR that doesn't find any signal when set up. A standard reciever has great strength, all transponders above 94 except one at 63. Do I need a b band converter to get a signal with the hr22? I checked a friends setup and they have a slightly different slimline with only one cable coming from it, there are no bband converters but there is a PI-21. Do I need two bbands or a pi-21. Kind of clueless but geting better. where do I get whichever I need, will directv just send me one.