National championships are on the line As coverage of the Parts Canada Superbike Championship resumes on TSN HD and TSN this week with action from the season finale at Shannonville Motorsport Park in Shannonville, Ont. The one-hour broadcast premiers on Tuesday, September 29 at 1:00 p.m. and repeats on Saturday, October 3 at 4:30 a.m. All times are Eastern. All five national class titles are on the line as the top motorcycle road racers in Canada tackle the 2.45km (1.53-mile) 11-turn S