I don't know how YTTV works yet, but what I can get
all F1 practices, quali, races, live or delayed, on internet or cell service (so I can watch on my phone). Also F2 races and quali, old archived f1 races, Porsche cup races and others.
There are also different settings that you can watch onboard any car you would like, you can watch different views and angles, get radio transmission from different racers. Most of this stuff I dont usually do during a race because I want the best view of live action. If you have ESPN and don't really care about all of that, it probably isn't a huge deal for the average fan.