All Available Season All Season Specials Dec, 2013 3 episodes 0.0 Series 1 Aug, 2012 6 episodes 7.7 Series 2 Sep, 2013 6 episodes 7.8 Series 3 Sep, 2014 6 episodes 8.1 Series 4 Jan, 2023 6 episodes 5.0 Series 5 Jan, 2024 6 episodes 0.0
