116 national championships since 1895 in football. However most teams don't count their national championship pre ww2!
They are football teams that play for the National Football Leage
In 1997 Nebraska and Michigan shared the title.
The teams over the years that played for football National Championships in college?
In 2009, the two teams played in the BCS National Championship Game. Florida won 24-14.
In 1990 Georgia Tech and Colorado shared the national championship.
For the 2008 National title game
Since football championship games have been played in the NCAA (1992-1994 Bowl Coalition, 1995-1997 Bowl Alliance, 1998-present BCS) two teams from the same conference have never met for the national championship.
In 2008 the teams were Alabama and Florida
yes green bay vs Chicago last year