The '01 season is over, and I don't think Fox is still showing taped races. They posted the tv schedule for last year's races on the website- www.gnccracing.com
I did not see the schedule on there page from last year, but I think it was on Fox Sports South West @ 11:00 every Wed. They alternated ATVs and motorcycles every week. I have checked and did not see it on this year, but I think It may still be to soon as the first race was just this last weekend, I think?
Actually the first round is next weekend in FL. Last year they didn't start airing episodes until about mid-season, so the last show was on time with the last race. I think this year's break is a little shorter, so they may start airing earlier. The website will be the best place for info when it becomes available, just follow zio's link.