Season 1 NBC Season 2007 NBC , 2007 Season 2008 NBC , 2008 Season 2009 NBC , 2009 Season 2010 NBC , 2010 Season 2011 NBC , 2011 Season 2012 NBC , 2012 Season 2013 NBC , 2013 Season 2014 NBC , 2014 Season 2015 NBC , 2015 Season 2016 NBC , 2016 Season 2017 NBC , 2017 Season 2022 NBC , 2022 Season 2023 NBC , 2023