Well,I reverted my HR24-500,HR22-100,& H24-700 to 0736 NR,& (strangely) my H25-500 to 06D8(?) NR. I'm having problems getting my HR23-700 to catch the 0736 NR,which means that it can't see my other DVR's & vice versa. My other DVR's/receivers,with the exception of the HR23,see each other now.