I live in the Atlanta area and sometimes have problems with LOS on the 129 thus some tp's don't come in well. The locals are on tp 4 so I usually have them. My setup is a 622 from a DPP44 with 119/110/129/61.5 coming into the reciever. My question is this, if I lose the 129 does the 622 automatically pickup the 61.5 to get the HD progam or is there something I have to manually do inside the 622 to force it to look at 61.5.