 Entries in the series have consistently been best-sellers, to the extent that they have even spawned TV shows featuring competition between players of the games.Despite Madden's retirement as a broadcaster in 2009, he still continues to lend his name and provide creative input to the series, which is so popular that he is better known as the face of "Madden" than as a Super Bowl-winning coach and broadcaster.Madden views the game as an educational tool.