Interestingly for users with 3D Vision support, this broadcast will use an updated version of Silverlight for the 3D video stream. You can visit the RaceBuddy link above to test to see if you have all the necessary hardware and software to watch the stream.

The 3D production will feature two custom racing feeds produced specifically for 3D. The first will provide a unique look at the racing action from strategically placed cameras around the track designed to maximize the effect of 3D. The second stream will bring the mayhem of pit row into the third dimension creating a one-of-a-kind visual experience.
TNT’s televised coverage at Daytona 6:30 p.m. ET with Countdown to Green, and continues with live race coverage at 7:30 p.m. in Wide Open format — continuous race coverage free of national commercial breaks and more unobstructed race action than that of a standard telecast by using a letterbox widescreen format.
TNT’s televised coverage at Daytona 6:30 p.m. ET with Countdown to Green, and continues with live race coverage at 7:30 p.m. in Wide Open format — continuous race coverage free of national commercial breaks and more unobstructed race action than that of a standard telecast by using a letterbox widescreen format.
While I am not personally a big NASCAR fan I will probably be using our in-house 3D Vision setup to test out the stream if only because of how many have mentioned that sports are the killer product for 3D technology.