The twentieth season of the American animated sitcom South Park premiered on Comedy Central on September 14, 2016 and ended on December 7, 2016, containing ten episodes. As with most seasons of the show, all episodes are written and directed by series co-creator and co-star Trey Parker. Like the previous two seasons, this season features an episode-to-episode continuity, but unlike the previous two, the continuity is more linear, as if the whole season is one story arc. This season featured recurring themes focusing on Internet trolls, nostalgia, and the 2016 United States presidential election. This season also had planned "dark weeks", weeks where no new episodes would air, which has been done since the 19th season. These were after episode three, episode six, and episode eight.