DC's Legends of Tomorrow, or simply Legends of Tomorrow, is a TV series that began airing January 21, 2016. It's described as a "superhero team-up show," acting as a spin-off of sorts from Arrow and The Flash. The show's first season had 16 1 hour episodes. Phil Klemmer serves as the series' showrunner. Blake Neely serves as composer for the series, as he previously has for Arrow and The Flash. On March 11, 2016, The CW renewed DC's Legends of Tomorrow for a second season. Starting January 24, 2017, DC's Legends of Tomorrow will shift from their Thursday night slot to Tuesdays, following The Flash.