Season 1 TVNZ 1 Season 10 TVNZ 2 , 2009 Season 11 TVNZ 2 , 2010 Season 12 TVNZ 2 , 2011 Season 13 TVNZ 2 , 2012 Season 14 TVNZ 2 , 2014 Season 15 TVNZ 2 , 2015 Season 16 TVNZ 2 , 2017 - 2018 Season 17 TVNZ 2 , 2019 Season 18 TVNZ 2 , 2020 Season 19 TVNZ 2 , 2021 Season 20 TVNZ 2 , 2022 Season 21 TVNZ 2 , 2024