Season 1 Nine Network , 2005 Season 2 Nine Network , 2006 Season 3 Nine Network , 2006 Season 4 Nine Network , 2007 Season 5 Nine Network , 2007 Season 6 Nine Network , 2008 Season 7 Nine Network , 2008 - 2009 Season 8 Nine Network , 2009 Season 9 Nine Network , 2010 Season 10 Nine Network , 2011