A clarification: while Universal Sports is an over-the-air DTV channel in many markets, it is primarily found as a DTV sub-channel on NBC stations that are wholly or partly owned by NBC Universal. The NBC affiliates in Hartford, CT, and Washington, DC, are wholly owned by NBC Universal, so we get the full Universal Sports treatment. The NBC affiliate in Salt Lake City, on the other hand, is owned by Bonneville Communications and does not, at the present time, carry Universal Sports as a DTV offering.
Many cable and satellite providers are starting to carry US as an option for their enhanced digital and/or HD packages (e.g. RCN and Comcast here in DC), but it's slow going. At least Universal Sports will show the live, unfettered feed from the race each morning. I watched the Vuelta a Pais Vasco this way on US, and hearing the whirr of the gears and the cheers from the crowd beat the drone of commentary that usually accompanies cycling coverage (all respect to Phil and Paul, but sometimes less is more). And US had the stages archived on their website, IIRC.
Can't wait to watch the Giro! Allez!