NEW YORK, Feb. 2, 2012 /PRNewswire-iReach/ -- The Whistle -- the first cross-platform content provider solely focused on developing entertaining, educational and participatory sports programming tailored to kids -- and the National Football League, America's most popular sports league among kids, announced today a comprehensive content agreement. The announcement was made by Jeff Urban, The Whistle co-founder and Chief Marketing Officer and Peter O'Reilly, NFL Vice President for Fan Strategy and Marketing.