I have a slimline 3 dish, HD25 receiver, and the power inserter. The LNB is the single round one, with 3 or 4 outputs. Do I need the SWM8 switch to make this work? I tried to make it work with the B Band converters without the power inserter and could not get a signal. I am going to try again this weekend with the power inserter conected. I am in a remote area and want to have the SWM8, or some other type of multi switch on hand if I need that. We are only running 1 TV and would like to have the ability to run 2 tuners. Thanks