Looks like NBC is spreading the coverage around a bit; it won't all air on NBCSP... Here's most of the announcement. If you want to see the IndyCar Series info, click here for the full article.
Thanks for that, I have the first practices and race set on the DTR, that will tell me whether I need to bother with the rest of them.....or need to find another online streaming source or something.
I have to work until 12:00 am on 3/15 and am off the rest of the day, so I guess I'll go home and watch the practice sessions.