<P> The Browns shared a rivalry with the Bills' predecessors in the All - America Football Conference, playing them twice in the AAFC playoffs before becoming one of three AAFC teams to join the NFL . The Bills were not selected to join the NFL and folded with the rest of the AAFC, leaving Buffalo without professional football until the current Bills were formed in 1959 . </P> <P> The Bills briefly developed a rivalry with the Dallas Cowboys as the two teams met in consecutive years in the Super Bowl in the 1990s . </P> <Ul> <Li> 1963 AFL Eastern Division Playoff: Boston Patriots 26, Buffalo Bills 8 </Li> <Li> 1964 AFL Championship: Buffalo Bills 20, San Diego Chargers 7 </Li> <Li> 1965 AFL Championship: Buffalo Bills 23, San Diego Chargers 0 </Li> <Li> 1966 AFL Championship: Kansas City Chiefs 31, Buffalo Bills 7 </Li> <Li> 1974 Divisional Playoffs: Pittsburgh Steelers 32, Buffalo Bills 14 </Li> <Li> 1980 Divisional Playoffs: San Diego Chargers 20, Buffalo Bills 14 </Li> <Li> 1981 Wild Card Game: Buffalo Bills 31, New York Jets 27 </Li> <Li> 1981 Divisional Playoffs: Cincinnati Bengals 28, Buffalo Bills 21 </Li> <Li> 1988 Divisional Playoffs: Buffalo Bills 17, Houston Oilers 10 </Li> <Li> 1988 AFC Championship: Cincinnati Bengals 21, Buffalo Bills 10 </Li> <Li> 1989 Divisional Playoffs: Cleveland Browns 34, Buffalo Bills 30 </Li> <Li> 1990 Divisional Playoffs: Buffalo Bills 44, Miami Dolphins 34 </Li> <Li> 1990 AFC Championship: Buffalo Bills 51, Los Angeles Raiders 3 </Li> <Li> Super Bowl XXV: New York Giants 20, Buffalo Bills 19 </Li> <Li> 1991 Divisional Playoffs: Buffalo Bills 37, Kansas City Chiefs 14 </Li> <Li> AFC Championship: Buffalo Bills 10, Denver Broncos 7 </Li> <Li> Super Bowl XXVI: Washington Redskins 37, Buffalo Bills 24 </Li> <Li> 1992 AFC Wild Card Game: Buffalo Bills 41, Houston Oilers 38 </Li> <Li> 1992 AFC Divisional Playoffs: Buffalo Bills 24, 1992 Pittsburgh Steelers 3 </Li> <Li> 1992 AFC Championship: Buffalo Bills 29, Miami Dolphins 10 </Li> <Li> Super Bowl XXVII: Dallas Cowboys 52, Buffalo Bills 17 </Li> <Li> 1993 Divisional Playoffs: Buffalo Bills 29, Los Angeles Raiders 23 </Li> <Li> AFC Championship: Buffalo Bills 30, Kansas City Chiefs 13 </Li> <Li> Super Bowl XXVIII: Dallas Cowboys 30, Buffalo Bills 13 </Li> <Li> 1995 Wild Card Game: Buffalo Bills 37, Miami Dolphins 22 </Li> <Li> 1995 Divisional Playoffs: Pittsburgh Steelers 40, Buffalo Bills 21 </Li> <Li> 1996 Wild Card Game: Jacksonville Jaguars 30, Buffalo Bills 27 </Li> <Li> 1998 Wild Card Game: Miami Dolphins 24, Buffalo Bills 17 </Li> <Li> 1999 Wild Card Game: Tennessee Titans 22, Buffalo Bills 16 </Li> <Li> Playoff record: 14 wins, 15 losses </Li> </Ul> <Li> 1963 AFL Eastern Division Playoff: Boston Patriots 26, Buffalo Bills 8 </Li>

When was the last time the buffalo bills won a superbowl
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