DNS is DirecTV's Distant Network Service. If your billing address is east of the Mississippi River you get your network channels from New York City, if west of the Mississippi you get Los Angeles. You always have network channels every time you aim your antenna and they are always the same channel numbers thus no reprogramming of your favorite programs. The cost is $15.00/month, but well worth it for me. The DNS channel numbers start at 390.
2006 GMC 2500HD CCSB 4x4 Duramax/Allison, Titan 52 gallon fuel tank, Prodigy Controller, B&W Companion Hitch
2010 Jayco Designer 35RLTS, Cummins/Onan RV QG 5500 EVAP, Progressive Industries EMS-PT50C, TST Systems 507 TPMS, RV Flex Armor Roof