premise: Poldark has three series.
hypothesis: Poldark . The series comprises 12 novels : the first seven are set in the 18th century , concluding in Christmas 1799 ; the remaining five are concerned with the early years of the 19th century and the lives of the descendants of the previous novels ' main characters . Poldark (2015 TV series) . The first eight-part series ( aired in seven parts in the USA ) was based on the first two Poldark novels by Winston Graham , adapted by Debbie Horsfield and directed by Edward Bazalgette and Will McGregor . On 8 April 2015 , the BBC announced that a second series had been commissioned which premiered on 4 September 2016 . The BBC announced on 6 July 2016 , before series 2 had begun , that a third series had been commissioned .