I live in the Des Moines, IA market and we have yet to receive our local HD channels through DTV (although I hear we're close). I have my standard rabbit ears connected for now. Whenever, I tune in to watch the news at 6 or 10pm, they broadcast in your 4:3 screen format. However, occasionally, they will do a quick sports segment in true 16:9 HD. Why can't they do this all the time with their news broadcasts? Is their some kind of restriction placed on them? What gives?