In the 1990's, the Buffalo Bills played in 4 consecutive Super Bowls (#25 to 28), an NFL record, but lost them all to teams in the National Conference, Eastern division: the Giants, Redskins, and Cowboys.
Super Bowl XXV (January 27, 1991) - Lost to New York Giants 20-19
Super Bowl XXVI (January 26, 1992) - Lost to Washington Redskins 37-24
Super Bowl XXVII (January 31, 1993) - Lost to Dallas Cowboys 52-17
Super Bowl XXVIII (January 30, 1994) - Lost rematch to Dallas Cowboys 30-13
The Bills defeated the Los Angeles Raiders in the 1990 AFC championship game by the score of 51-3.
The Denver Broncos and the NY Jets
Indiana defeated one team twice in the five NCAA Championship games they won. Which team did they defeat? Kansas
The Jets hold the distinction of being the first AFL team to defeat an NFL club in an AFL-NFL World Championship Game, when they defeated the Baltimore Colts in Super Bowl III
Indiana defeated Kansas twice. 1940 and 1953.
Joe Namath guaranteed victory before Super Bowl III against the Baltimore Colts. He turned out to be a prophet as the Jets defeated the Colts 16-7 to become the first American Football League team to win an AFL-NFL championship.
Hardcore Holly & Cody Rhodes defeated Santino Marella & Carlito to retain the World Tag Team Championship John Morrison & the Miz defeated CM Punk & Kane to retain the WWE Tag team Championship Kane defeated The Miz to retain the ECW Championship John Cena defeated JBL Shawn Michaels defeated Chris Jericho to win the WWE Intercontiental Championship Mickie James defeated Beth Pheonix and Melina in a triple threat match to retain the WWE Women's Championship Edge defeated The Undertaker to win the World Heavyweight Championship Hardy Boys defeated MVP & Umaga Triple H defeated Randy Orton in a steel cage match to retain the WWE Championship
That was the Pittsburgh Steelers by the score of 20-16.
Lovie Smith of the Chicago Bears. The first Super Bowl to have a team head coached by an African-American was Super Bowl XLI between the Bears and Indianapolis Colts. Ironically, both head coaches were African-American (Tony Dungy was the head coach of the Colts) but Smith was first as the Bears defeated the Saints in the NFC Championship game played several hours before the Colts defeated the New England Patriots in the AFC Championship game.
The NFC champion for the 2006 season was the Chicago Bears. The Bears wound up losing the the Indianapolis Colts, 29-17, in Super Bowl XLI.