Season 1 Paramount Network , 2009 Season 2 Paramount Network , 2010 Season 3 Paramount Network , 2010 Season 4 Paramount Network , 2011 Season 5 Paramount Network , 2011 Season 6 Paramount Network , 2012 Season 7 Paramount Network , 2012 Season 8 Paramount Network , 2013 Season 9 Paramount Network , 2013 - 2014 Season 11 Paramount Network , 2014 Season 12 Paramount Network , 2015 Season 13 Paramount Network , 2016 Season 14 Paramount Network , 2017 Season 15 Paramount Network , 2018 Season 16 Paramount Network , 2019 Season 17 CBS Sports Network , 2020 Season 18 CBS Sports Network , 2021 Season 19 Showtime , 2022 Season 20 Showtime , 2023