Glad to hear it worked out for you this time. Once we got all the facts it was clear the first time you called customer service they did something wrong. As far as educating yourself more, you know the basics now. All local channels on DirecTV are "spot beamed" to the areas they serve by various satellites. Most "spot beams" carry multiple markets. In your case the spot beam that carried your real locals (Harrisburg, PA) also carried the same local market you wanted to "move" to (Baltimore, MD). There is some overlap, but for the most part DirecTV's spot beams are fairly narrow (within 100-200 mile radius of their intended target is the limit). There are spot beam maps available for most markets on the "other" forum, DBStalk. They also post a spreadsheet that has all of the information we used to help you out. The spreadsheet is similar to "The List" here. It has every local channel that DirecTV offers, the satellite it comes from, the transponder, and in most cases information which Spot Beam carries it so you can correlate it to the map. The easiest way is to check that spreadsheet for a market, then check the signal on the transponders.
