Black Mirror is a British science fiction television anthology series created by Charlie Brooker. It centres around dark and satirical themes that examine modern society, particularly with regard to the unanticipated consequences of new technologies. Episodes are standalone works, usually set in an alternative present or the near future. The show was first broadcast on the British Channel 4, in 2011. In September 2015, Netflix commissioned a third series of 12 episodes. The commissioned episodes were later divided into two series of six episodes. The third series was released on Netflix worldwide on 21 October 2016. Filming for the fourth series concluded in June 2017, with the premiere expected later the same year.