Dan, the problem with HD on TV is that not only the network, but local stations have to be able to transmit the HD signal, but right now you need to get that signal on the special HD channels. Were getting closer and closer to a full HD program schedule across the board.
As video editors we know its coming, we know the difference, we can see it, but try convincing the average consumer to buy an HD READY TV, the cost difference is to much especially with all the deals out there for SD big screen TVs.