Season 1 Discovery Life , 2005 Watch now Season 2 Discovery Life , 2005 - 2006 Watch now Season 3 Discovery Life , 2006 Watch now Season 4 Discovery Life , 2006 Watch now Season 5 Discovery Life , 2010 Watch now Season 6 Discovery Life , 2012 Watch now Season 7 Discovery Life , 2012 Watch now Season 8 Discovery Life , 2013 - 2014 Watch now Season 9 Discovery Life , 2014 - 2015 Watch now Season 10 Discovery Life , 2015 - 2016 Watch now Season 11 Discovery Life , 2016 Watch now Season 12 Discovery Life , 2016 Watch now Season 13 TLC , 2018 Watch now Season 14 TLC , 2019 Watch now Season 15 TLC , 2020 Watch now