If you're looking for TV coverage, I think the only hope at this point is NBC Universal, which is somewhere on satellite, like channel 191. So you need a dish. IF they pick it up. I think if Lance races in it, they will. NBC Universal also does high quality webcasting, for free, but it's a crapshoot as to what you're going to get.
On the web you have a few choices: Cycling.TV is high quality webcasting. But if you're on dial-up, you'll get a jumpy, postage stamp sized screen. CyclingFans, and Steephill.tv are two sites that try to cover the race for free.