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.
Yes, American League and National League teams play against each other in interleague games during the regular season.
Army/Navy
They do, when the American League teams and the National League teams play each other.
Yes. Each season teams will play 15 to 18 games against teams from the other league.
It is the national sport of many countries, and because there are teams from many countries that play each other at many levels, it is an international sport.
Yes, the American League and the National League teams play against each other in Major League Baseball during interleague play and the World Series.
No. They cannot play each other in the World Series as both teams are in the National League.
Its a abbreviation for the national football league. As there aren't any other leagues of football teams that compete constantly with each other to make money it must be a monopoly.
NBA Basketball is an association called the National Basketball Association. In it people play basketball in a season on one of the 30 teams. The teams verse each other at one of their home courts. (Each team has there own court with the team name painted in the middle.)
Four teams per division
Each team plays 46 games; the total for the season is 552.
English teams can face each other in the Champions league from the quarter finals stage. This is because after this stage, teams are drawn randomly to face each other.