<P> The series has garnered mostly positive reviews, received many awards and nominations, and seen an increase in interest internationally, particularly in the United States after its addition to Netflix . Two episodes, "San Junipero" (from the third series) and "USS Callister" (fourth series), won a total of five Emmy Awards, with both episodes winning Outstanding Television Movie . </P> <P> The show was originally commissioned by Channel 4 in the United Kingdom, and premiered in December 2011 . A second series ran during February 2013 . In September 2015, Netflix purchased the programme, commissioning a series of 12 episodes later divided into two series of six episodes . The first of these series was released on Netflix worldwide as the overall third series on 21 October 2016 . The fourth series was released on 29 December 2017 . </P> <Table> <Tr> <Th_colspan="2"> Series </Th> <Th_colspan="2"> Episodes </Th> <Th_colspan="3"> Originally aired </Th> </Tr> <Tr> <Th> First aired </Th> <Th> Last aired </Th> <Th> Network </Th> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> </Td> <Td_colspan="1"> 4 December 2011 (2011 - 12 - 04) </Td> <Td> 18 December 2011 (2011 - 12 - 18) </Td> <Td> Channel 4 </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> </Td> <Td_colspan="1"> 11 February 2013 (2013 - 02 - 11) </Td> <Td> 25 February 2013 (2013 - 02 - 25) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="3"> Special </Td> <Td_colspan="2"> 16 December 2014 (2014 - 12 - 16) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 6 </Td> <Td_colspan="2"> 21 October 2016 (2016 - 10 - 21) </Td> <Td> Netflix </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 6 </Td> <Td_colspan="2"> 29 December 2017 (2017 - 12 - 29) </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Series </Th> <Th_colspan="2"> Episodes </Th> <Th_colspan="3"> Originally aired </Th> </Tr>

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