TV Reminder: St. Louis SX on TodayApril 18, 2010 8:40am Home Breaking News TV Reminder: St. Louis SX on Today Catch all the action from last night's St. Louis Supercross today. The AMA Supercross class will air on CBS Sports at 2:00 p.m. ET, while the Lites class will broadcast over on SPEED at 6:00 p.m. ET. As always, check your local listings.