Are none of these races on FOX any more?
Just the first of the season for the last few years - through Memorial day or so. Then a brief stint on TNT, then I think ESPN for a few weeks.
I believe all the following is correct:
Camping World Series on Fox Sports, 8:30 Eastern, Friday
Nationwide on ESPN2, 2:30 Eastern, Saturday
Nascar on TNT, 1pm Eastern, Sunday