Question: when does the 2017 season of madame secretary start
Answer: Season Episodes Originally aired First aired Last aired 22 September 21 , 2014 ( 2014 - 09 - 21 ) May 3 , 2015 ( 2015 - 05 - 03 ) 23 October 4 , 2015 ( 2015 - 10 - 04 ) May 8 , 2016 ( 2016 - 05 - 08 ) 23 October 2 , 2016 ( 2016 - 10 - 02 ) May 21 , 2017 ( 2017 - 05 - 21 ) TBA October 8 , 2017 ( 2017 - 10 - 08 ) TBA