How many super bowls have the bills lost?

The Buffalo Bills appeared in four consecutive Super Bowls in the early 1990s and lost them all. Here are the results:
  • Super Bowl XXV (1-27-91) -- New York Giants 20, Buffalo 19.
  • Super Bowl XII (1-26-92)-- Washington Redskins 37, Buffalo 24.
  • Super Bowl XXVII (1-31-93) -- Dallas Cowboys 52, Buffalo 17.
  • Super Bowl XXVIII (1-30-94) -- Dallas 30, Buffalo 13.