Season 1 CBBC , 2011 Watch now Season 2 CBBC , 2013 Season 3 CBBC , 2015 Began airing on 2 November 2015 on CBBC, with Sam Nixon and Mark Rhodes replacing Craze as hosts. Allegra McEvedy and Graham Hornigold taking over from Berry and Martin as judges in this series of Junior Bake Off. Season 4 CBBC , 2016 Season 5 Channel 4 , 2019 Watch now Season 6 Channel 4 , 2021 Watch now Harry Hill hosts, as judges Liam Charles and Ravneet Gill take on the tough task of finding Britain's best junior baker. Season 7 Channel 4 , 2022 Watch now Season 8 Channel 4 , 2023 Watch now Season 9 Channel 4 , 2024 Watch now