Once again MAVTV does the lion’s share of bringing racing to the viewing public and this week they have something very special. Things start Thursday noon with the Dirty 30 show about midget and sprint car racing from Perris Auto Speedway in Southern California. This is followed at 1:30 p.m. with the American Sprint Boat Series. Then at 5:30 p.m. they continue with the IHRA Nitro Jam drag race series followed at 8 p.m. with Speed Sport News. Not much on Friday but there are still many shows to choose from. Saturday begins at 9 a.m. with a rebroadcast of