Is there any reason why a Sony A1 would no longer pick up locals (Atlanta). DirecTV has given me conflicting answers. Phone support said it should since SD locals for ATL are on the 101 but a tech visiting my parents house said this model does not support the slimline 3 antenna (they have two newer HD receivers). The A1 gets locals on the 900s and just gives a black screen w/ "searching for satellite signal" message. It gets all other channels except for SportsSouth. If the A1 is too old my parents have a deactivated Samsung SIR-TS160. If I reactivated this unit would it get SD locals for ATL?