Season 1 Channel 4 , 2012 Watch now Season 2 Channel 4 , 2013 - 2014 Watch now Season 3 Channel 4 , 2014 Season 4 Channel 4 , 2014 - 2015 Watch now Season 5 Channel 4 , 2015 Watch now Season 6 Channel 4 , 2015 - 2016 Watch now Season 7 Channel 4 , 2016 Watch now Season 8 Channel 4 , 2016 Watch now Season 9 Channel 4 , 2016 - 2017 Watch now Season 10 Channel 4 , 2017 Watch now Season 11 Channel 4 , 2017 Watch now Season 12 Channel 4 , 2017 - 2018 Watch now Season 13 Channel 4 , 2018 Season 14 Channel 4 , 2018 Season 15 Channel 4 , 2018 - 2019 Watch now Season 16 Channel 4 , 2019 Watch now Season 17 Channel 4 , 2019 - 2020 Watch now Season 18 Channel 4 , 2020 - 2021 Watch now Season 19 Channel 4 , 2021 Season 20 Channel 4 , 2021 Season 21 Channel 4 , 2021 - 2022 Season 22 Channel 4 , 2022 Season 23 Channel 4 , 2022 - 2023 Season 24 Channel 4 , 2023 - 2024 Season 25 Channel 4 , 2025
, 2012
