Season 1 Showtime 2 , 2007 Season 2 Showtime 2 , 2008 Season 3 Showtime 2 , 2008 Season 4 Showtime 2 , 2009 Season 5 Showtime 2 , 2010 Season 6 Showtime 2 , 2011 Season 7 Showtime 2 , 2012 Season 8 Pop , 2013 Season 9 Pop , 2014 Season 10 Pop , 2015 Season 11 Pop , 2016 Season 12 Pop , 2017