When you get local service, Directv delivers rebroadcasts of the over-the-air tv channels from the location Directv has as your SERVICE ADDRESS (we'll come back to this in a little bit). These rebroadcasts are delivered via 'spot beams' with a radius in the range of 100-200 miles, depending on the address.<br/><br/>Thus you won't get your Houston channels if you travel more than...