Comedy Central has a big South Park marathon planned next month that will lead up to its season 21 premiere. The network announced today that the eight-day South Park marathon will kick off Wednesday, September 6th and air 254 episodes for 127 hours, pausing along the way only for new episodes of The Daily Show with Trevor Noah. It will wrap up when the season 21 premiere airs Wednesday, September 13th at 10:00pm followed by the season 4 premiere of Broad City at 10:30pm.