Season 1 Nine Network , 1994 Season 11 Nine Network , 2004 Season 12 Nine Network , 2005 Season 13 Nine Network , 2006 Season 14 Nine Network , 2007 Season 15 Nine Network , 2008 Season 16 Nine Network , 2009 Season 17 Nine Network , 2010 Season 18 Nine Network , 2011 Season 19 Nine Network , 2012 Season 20 Nine Network , 2013 Season 21 Nine Network , 2014 Season 22 Nine Network , 2015 Season 23 Nine Network , 2016 Season 24 Nine Network , 2017 Season 25 Nine Network , 2018 Season 26 Nine Network , 2019