Season 1 BBC Four , 2010 - 2011 Season 2 BBC Four , 2011 - 2012 Season 3 BBC Four , 2012 - 2013 Season 4 BBC Two , 2018 Season 5 BBC Two , 2019 - 2020 Season 6 BBC Two , 2020 - 2021 Season 7 BBC Two , 2021 Season 8 BBC Two , 2022 Season 9 BBC Two , 2023
, 2010 - 2011