Endeavour is a British television detective drama series created by Russell Lewis and co-produced by Mammoth Screen and Masterpiece in association with ITV Studios. It was first broadcast on ITV in the United Kingdom on 2 January 2012 and on PBS in the United States on 1 July 2012, as part of the Masterpiece Mystery! anthology. Eight series have been broadcast, with the latest completed on 26 September 2021. Series 9 is scheduled to air in 2023 and shall be the final series.