It was mentioned in another thread that it is difficult to find TV broadcasts (live or delayed) in the USA (or any country outside of Australia).

Live streams of each race and qualifying sessions can be found online (and I believe free) via the V8 Supercars website.  Full replays of previous races can also be found on the site.

http://www.v8supercars.com.au/v8live

It looks like that only Australia and New Zealand are geoblocked (as we can get it direct on 7 or Foxtel).

Happy racing :-)