In September 2015, Netflix purchased the programme, commissioning a series of 12 episodes later divided into two series of six episodes; the fourth series was released on 29 December 2017.
Netflix purchased the programme. This was in September 2015. Netflix was commissioning a series of 12 episodes. This was in September 2015. These 12 episodes were later divided into two series of six episodes. The fourth series was released on 29 December 2017.