The Dallas Cowboys football team was part of a National Football League franchise expansion in 1960. The logo of the team, since 1964, is a solid blue star with a white line and blue border. They have been a member of the National Football Conference-East division since 1970. Some of the fiercest rivalries exist between the Cowboys and the other East division teams: the Washington Redskins, the Philadelphia Eagles and the New York Giants. Home field for the Dallas Cowboys is AT&T Stadium in Arlington, Texas. Inside the stadium hangs a 160 foot by 72 foot high-definition television screen, the largest television screen in the world.