Season 7, also called Series 7, of the British comedy-drama "Doc Martin," is the last season to be announced, as of 2015. It is scheduled to air in late 2015.
The last season of "Doc Martin" to air, as of February 2015, is Series 6, which aired in 2013. The show began airing in 2004, and a new series has arrived at least once every two years since. Series 2 aired in 2005 and 2006, while Series 3 aired in 2007. A special was also produced between those seasons, and it aired in 2006. Series 4 aired in 2009, and Series 5 was first shown in 2011.