Season 1 BBC Two , 2009 Season 2 BBC Two , 2010 Season 3 BBC One , 2010 Season 4 BBC One , 2011 Season 5 BBC One , 2011 - 2012 Season 6 BBC One , 2012 Season 7 BBC One , 2012 Season 8 BBC One , 2013 Season 9 BBC One , 2013 Season 10 BBC One , 2013 - 2014 Season 11 BBC One , 2014 Season 12 BBC One , 2014 - 2015 Season 13 BBC One , 2015 Season 14 BBC One , 2015 - 2016 Season 15 BBC One , 2016 Season 16 BBC One , 2016 - 2017 Season 17 BBC One , 2017 Season 18 BBC One , 2017 - 2018 Season 19 BBC One , 2018 Season 20 BBC One , 2018 - 2019 Season 21 BBC One , 2019 Season 22 BBC One , 2019 - 2020 Season 23 BBC One , 2020 Season 24 BBC One , 2020 - 2021 Season 25 BBC One , 2021 Season 26 BBC One , 2021 - 2022 Season 27 BBC One , 2022 Season 28 BBC One , 2022 - 2023 Season 29 BBC One , 2023 Season 30 BBC One , 2023 - 2024 Season 31 BBC One , 2024
, 2009