<Table> <Tr> <Th colspan="2"> Series </Th> <Th colspan="2"> Episodes </Th> <Th colspan="2"> Originally aired </Th> <Th colspan="2"> Average ratings ( millions ) </Th> </Tr> <Tr> <Th> First aired </Th> <Th> Last aired </Th> <Th> UK </Th> <Th> U.S. </Th> </Tr> <Tr> <Td> </Td> <Td colspan="1"> </Td> <Td colspan="2"> </Td> <Td colspan="1"> 25 July 2010 ( 2010 - 07 - 25 ) </Td> <Td> 8 August 2010 ( 2010 - 08 - 08 ) </Td> <Td> 8.37 </Td> <Td> N / A </Td> </Tr> <Tr> <Td> </Td> <Td colspan="1"> </Td> <Td colspan="2"> </Td> <Td colspan="1"> 1 January 2012 ( 2012 - 01 - 01 ) </Td> <Td> 15 January 2012 ( 2012 - 01 - 15 ) </Td> <Td> 10.23 </Td> <Td> 4.4 </Td> </Tr> <Tr> <Td> </Td> <Td colspan="1"> </Td> <Td colspan="2"> </Td> <Td colspan="1"> 1 January 2014 ( 2014 - 01 - 01 ) </Td> <Td> 12 January 2014 ( 2014 - 01 - 12 ) </Td> <Td> 11.82 </Td> <Td> 6.6 </Td> </Tr> <Tr> <Td> </Td> <Td colspan="3"> Special </Td> <Td colspan="2"> 1 January 2016 ( 2016 - 01 - 01 ) </Td> <Td> 11.64 </Td> <Td> 3.4 </Td> </Tr> <Tr> <Td> </Td> <Td colspan="1"> </Td> <Td colspan="2"> </Td> <Td colspan="1"> 1 January 2017 ( 2017 - 01 - 01 ) </Td> <Td> 15 January 2017 ( 2017 - 01 - 15 ) </Td> <Td> 10.00 </Td> <Td> N / A </Td> </Tr> </Table>
<Table> <Tr> <Th colspan="2"> Series </Th> <Th colspan="2"> Episodes </Th> <Th colspan="2"> Originally aired </Th> <Th colspan="2"> Average ratings ( millions ) </Th> </Tr> <Tr> <Th> First aired </Th> <Th> Last aired </Th> <Th> UK </Th> <Th> U.S. </Th> </Tr> <Tr> <Td> </Td> <Td colspan="1"> </Td> <Td colspan="2"> </Td> <Td colspan="1"> 25 July 2010 ( 2010 - 07 - 25 ) </Td> <Td> 8 August 2010 ( 2010 - 08 - 08 ) </Td> <Td> 8.37 </Td> <Td> N / A </Td> </Tr> <Tr> <Td> </Td> <Td colspan="1"> </Td> <Td colspan="2"> </Td> <Td colspan="1"> 1 January 2012 ( 2012 - 01 - 01 ) </Td> <Td> 15 January 2012 ( 2012 - 01 - 15 ) </Td> <Td> 10.23 </Td> <Td> 4.4 </Td> </Tr> <Tr> <Td> </Td> <Td colspan="1"> </Td> <Td colspan="2"> </Td> <Td colspan="1"> 1 January 2014 ( 2014 - 01 - 01 ) </Td> <Td> 12 January 2014 ( 2014 - 01 - 12 ) </Td> <Td> 11.82 </Td> <Td> 6.6 </Td> </Tr> <Tr> <Td> </Td> <Td colspan="3"> Special </Td> <Td colspan="2"> 1 January 2016 ( 2016 - 01 - 01 ) </Td> <Td> 11.64 </Td> <Td> 3.4 </Td> </Tr> <Tr> <Td> </Td> <Td colspan="1"> </Td> <Td colspan="2"> </Td> <Td colspan="1"> 1 January 2017 ( 2017 - 01 - 01 ) </Td> <Td> 15 January 2017 ( 2017 - 01 - 15 ) </Td> <Td> 10.00 </Td> <Td> N / A </Td> </Tr> </Table>
when did series 4 of sherlock come out
when did series 4 of sherlock come out
1 January 2017
1 January 2017