I'm scrolling through the XM thinking of format possibilities for part 15 stations that aren't already covered among licensed stations, and it occurs to me that there are plenty of opportunities to do something different as a niche for a small area. But what effect will HD subchannels have on the ability of part 15 to actually attract anyone to listen? Granted, most part 15s aren't exactly on the brink of showing up in the latest book, but if one's goal is to provide interesting programming to the community, won't the onslaught of 40-80 new stations in every market kill any off-the-wall format possibility? I understand our SSTrans aren't competing with Class C FMs, but for example, the format I'm setting up, Indie, hasn't gained much traction outside of KDLD/KDLE/LA, but could easily pop up on an alternative's HD2 or -3 and kill whatever listenership I'll get in my eclectic corner of Arizona. No?