I bought an HDTV over-the-air receiver a few months ago. One of the cooler things about digitial broadcasts is that each channel can have subchannels (up to 5, I think). So channel 5 can have a 5.1, 5.2, 5.3, etc. For the NCAA tournament, our local CBS affiliate is broadcasting EVERY basketball game by showing a game on each of the first four subchannels. I’m not a huge basketball fan, but that’s pretty freaking sweet.
Also, it’s almost 1111111111.