<P> As of 20 May 2018, 116 episodes have aired over 19 series . Episodes 1 to 100 were originally released on DVD as 25 "sets," which are now discontinued, and have been re-released as "series" 1 to 16 in redesigned packages . </P> <P> Series 20 was announced by ITV in April 2017 . </P> <Table> <Tr> <Th_colspan="2"> Series </Th> <Th_colspan="2"> Episodes </Th> <Th_colspan="2"> Originally aired </Th> </Tr> <Tr> <Th> First aired </Th> <Th> Last aired </Th> </Tr> <Tr> <Td> </Td> <Td_colspan="3"> Pilot </Td> <Td_colspan="2"> 23 March 1997 (1997 - 03 - 23) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> </Td> <Td_colspan="1"> 22 March 1998 (1998 - 03 - 22) </Td> <Td> 6 May 1998 (1998 - 05 - 06) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> </Td> <Td_colspan="1"> 20 January 1999 (1999 - 01 - 20) </Td> <Td> 5 February 2000 (2000 - 02 - 05) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> </Td> <Td_colspan="1"> 12 September 1999 (1999 - 09 - 12) </Td> <Td> 29 January 2000 (2000 - 01 - 29) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 5 </Td> <Td_colspan="1"> 10 September 2000 (2000 - 09 - 10) </Td> <Td> 16 September 2001 (2001 - 09 - 16) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> 5 </Td> <Td_colspan="2"> 5 </Td> <Td_colspan="1"> 23 September 2001 (2001 - 09 - 23) </Td> <Td> 22 September 2002 (2002 - 09 - 22) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> 6 </Td> <Td_colspan="2"> 5 </Td> <Td_colspan="1"> 3 January 2003 (2003 - 01 - 03) </Td> <Td> 31 January 2003 (2003 - 01 - 31) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> 7 </Td> <Td_colspan="2"> 7 </Td> <Td_colspan="1"> 2 November 2003 (2003 - 11 - 02) </Td> <Td> 25 December 2004 (2004 - 12 - 25) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> 8 </Td> <Td_colspan="2"> 8 </Td> <Td_colspan="1"> 10 October 2004 (2004 - 10 - 10) </Td> <Td> 2 October 2005 (2005 - 10 - 02) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> 9 </Td> <Td_colspan="2"> 8 </Td> <Td_colspan="1"> 9 October 2005 (2005 - 10 - 09) </Td> <Td> 17 September 2006 (2006 - 09 - 17) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> 10 </Td> <Td_colspan="2"> 8 </Td> <Td_colspan="1"> 12 November 2006 (2006 - 11 - 12) </Td> <Td> 11 May 2008 (2008 - 05 - 11) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> 11 </Td> <Td_colspan="2"> 7 </Td> <Td_colspan="1"> 1 January 2008 (2008 - 01 - 01) </Td> <Td> 5 May 2009 (2009 - 05 - 05) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> 12 </Td> <Td_colspan="2"> 7 </Td> <Td_colspan="1"> 22 July 2009 (2009 - 07 - 22) </Td> <Td> 14 April 2010 (2010 - 04 - 14) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> 13 </Td> <Td_colspan="2"> 8 </Td> <Td_colspan="1"> 10 February 2010 (2010 - 02 - 10) </Td> <Td> 2 February 2011 (2011 - 02 - 02) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> 14 </Td> <Td_colspan="2"> 8 </Td> <Td_colspan="1"> 23 March 2011 (2011 - 03 - 23) </Td> <Td> 11 January 2012 (2012 - 01 - 11) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> 15 </Td> <Td_colspan="2"> 6 </Td> <Td_colspan="1"> 1 February 2012 (2012 - 02 - 01) </Td> <Td> 30 January 2013 (2013 - 01 - 30) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> 16 </Td> <Td_colspan="2"> 5 </Td> <Td_colspan="1"> 24 December 2013 (2013 - 12 - 24) </Td> <Td> 12 February 2014 (2014 - 02 - 12) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> 17 </Td> <Td_colspan="2"> </Td> <Td_colspan="1"> 28 January 2015 (2015 - 01 - 28) </Td> <Td> 18 February 2015 (2015 - 02 - 18) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> 18 </Td> <Td_colspan="2"> 6 </Td> <Td_colspan="1"> 6 January 2016 (2016 - 01 - 06) </Td> <Td> 17 February 2016 (2016 - 02 - 17) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> 19 </Td> <Td_colspan="2"> 6 </Td> <Td_colspan="1"> 18 December 2016 (2016 - 12 - 18) </Td> <Td> 20 May 2018 (2018 - 05 - 20) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> 20 </Td> <Td_colspan="2"> 6 </Td> <Td_colspan="1"> 2018 (2018) </Td> <Td> TBA </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Series </Th> <Th_colspan="2"> Episodes </Th> <Th_colspan="2"> Originally aired </Th> </Tr>

How many episodes in midsomer murders season 19