I currently have a Direct TV HR22 DVR hooked to a Slimline dish with a Ka/Ku 5 Satellite LNB with a built in multi-switch. I have 2 coax cables running into the house, as the HR22 needs 2 coax feeds, both have a 'B-band' converter where the coax cables go into the receiver. Wanting to upgrade to an HR44 Genie, but I see that it only has one coax input on the back. Will my dish still work with the HR22? Do I still need the B-band converter? Or do I need some other switch? Any help would be appreciated.