<Table> <Tr> <Th colspan="2"> Series </Th> <Th colspan="2"> Episodes </Th> <Th colspan="2"> Originally aired </Th> <Th> Ave . UK viewers ( millions ) </Th> </Tr> <Tr> <Th> First aired </Th> <Th> Last aired </Th> </Tr> <Tr> <Td> </Td> <Td colspan="1"> </Td> <Td colspan="2"> 7 </Td> <Td colspan="1"> 26 September 2010 ( 2010 - 09 - 26 ) </Td> <Td> 7 November 2010 ( 2010 - 11 - 07 ) </Td> <Td> 9.70 </Td> </Tr> <Tr> <Td> </Td> <Td colspan="1"> </Td> <Td colspan="2"> 8 ( + 1 ) </Td> <Td colspan="1"> 18 September 2011 ( 2011 - 09 - 18 ) </Td> <Td> 6 November 2011 ( 2011 - 11 - 06 ) 25 December 2011 ( special ) </Td> <Td> 11.68 </Td> </Tr> <Tr> <Td> </Td> <Td colspan="1"> </Td> <Td colspan="2"> 8 ( + 1 ) </Td> <Td colspan="1"> 16 September 2012 ( 2012 - 09 - 16 ) </Td> <Td> 4 November 2012 ( 2012 - 11 - 04 ) 25 December 2012 ( special ) </Td> <Td> 11.91 </Td> </Tr> <Tr> <Td> </Td> <Td colspan="1"> </Td> <Td colspan="2"> 8 ( + 1 ) </Td> <Td colspan="1"> 22 September 2013 ( 2013 - 09 - 22 ) </Td> <Td> 10 November 2013 ( 2013 - 11 - 10 ) 25 December 2013 ( special ) </Td> <Td> 11.84 </Td> </Tr> <Tr> <Td> </Td> <Td colspan="1"> 5 </Td> <Td colspan="2"> 8 ( + 1 ) </Td> <Td colspan="1"> 21 September 2014 ( 2014 - 09 - 21 ) </Td> <Td> 9 November 2014 ( 2014 - 11 - 09 ) 25 December 2014 ( special ) </Td> <Td> 10.40 </Td> </Tr> <Tr> <Td> </Td> <Td colspan="1"> 6 </Td> <Td colspan="2"> 8 ( + 1 ) </Td> <Td colspan="1"> 20 September 2015 ( 2015 - 09 - 20 ) </Td> <Td> 8 November 2015 ( 2015 - 11 - 08 ) 25 December 2015 ( special ) </Td> <Td> 10.42 </Td> </Tr> </Table>
<Table> <Tr> <Th colspan="2"> Series </Th> <Th colspan="2"> Episodes </Th> <Th colspan="2"> Originally aired </Th> <Th> Ave . UK viewers ( millions ) </Th> </Tr> <Tr> <Th> First aired </Th> <Th> Last aired </Th> </Tr> <Tr> <Td> </Td> <Td colspan="1"> </Td> <Td colspan="2"> 7 </Td> <Td colspan="1"> 26 September 2010 ( 2010 - 09 - 26 ) </Td> <Td> 7 November 2010 ( 2010 - 11 - 07 ) </Td> <Td> 9.70 </Td> </Tr> <Tr> <Td> </Td> <Td colspan="1"> </Td> <Td colspan="2"> 8 ( + 1 ) </Td> <Td colspan="1"> 18 September 2011 ( 2011 - 09 - 18 ) </Td> <Td> 6 November 2011 ( 2011 - 11 - 06 ) 25 December 2011 ( special ) </Td> <Td> 11.68 </Td> </Tr> <Tr> <Td> </Td> <Td colspan="1"> </Td> <Td colspan="2"> 8 ( + 1 ) </Td> <Td colspan="1"> 16 September 2012 ( 2012 - 09 - 16 ) </Td> <Td> 4 November 2012 ( 2012 - 11 - 04 ) 25 December 2012 ( special ) </Td> <Td> 11.91 </Td> </Tr> <Tr> <Td> </Td> <Td colspan="1"> </Td> <Td colspan="2"> 8 ( + 1 ) </Td> <Td colspan="1"> 22 September 2013 ( 2013 - 09 - 22 ) </Td> <Td> 10 November 2013 ( 2013 - 11 - 10 ) 25 December 2013 ( special ) </Td> <Td> 11.84 </Td> </Tr> <Tr> <Td> </Td> <Td colspan="1"> 5 </Td> <Td colspan="2"> 8 ( + 1 ) </Td> <Td colspan="1"> 21 September 2014 ( 2014 - 09 - 21 ) </Td> <Td> 9 November 2014 ( 2014 - 11 - 09 ) 25 December 2014 ( special ) </Td> <Td> 10.40 </Td> </Tr> <Tr> <Td> </Td> <Td colspan="1"> 6 </Td> <Td colspan="2"> 8 ( + 1 ) </Td> <Td colspan="1"> 20 September 2015 ( 2015 - 09 - 20 ) </Td> <Td> 8 November 2015 ( 2015 - 11 - 08 ) 25 December 2015 ( special ) </Td> <Td> 10.42 </Td> </Tr> </Table>
how many episodes were in season 1 of downton abbey
how many episodes were in season 1 of downton abbey
7
7