Season 1 RTÉ ONE , 2010 Season 2 RTÉ ONE , 2011 - 2012 Season 3 RTÉ ONE , 2012 Season 5 RTÉ ONE , 2015 Season 6 RTÉ ONE , 2016 Season 7 RTÉ ONE , 2017 Season 8 RTÉ ONE , 2018
, 2010