It is old news to me but HDTV has still to turn on viewers. While working out at the gym the other day and listening to Harry Shearer's Le Show, he mentioned recent research conducted by the Scripps Network that large numbers of viewers that receive a HDTV feed continue to watch the same content in standard definition.
I posted about this problem a couple of years ago. Since then I have successfully trained my family to watch HDTV when it is available, but it took some work to make them HD aware. Still, we do not get a lot of channels in HD and the channels are still in the same obscure 700 range of the "dial".
There is some good programming in HD. Last night we watched 2001: A Space Odyssey on the Universal HD channel and it was stunning. Fortunately there were only a few commercial breaks, because the commercials came in so much louder than the film we had to mute the entire commercial break to remain sane.