The following are all of the Super Bowls played to date and their results:
SB1 : 35-10 Green Bay over Kansas City (1967)
SB2 : 33-14 Green Bay over Oakland Raiders
SB3 : 16-7 NY Jets over Baltimore Colts
SB4 : 23-7 Kansas City over Minnesota
SB5 : 16-13 Baltimore Colts over Dallas
SB6 : 24-3 Dallas over Miami
SB7 : 14-7 Miami over Washington
SB8 : 24-7 Miami over Minnesota
SB9 : 16-6 Pittsburgh over Minnesota
SB10: 21-17 Pittsburgh over Dallas (1976)
SB11: 32-14 Oakland over Minnesota
SB12: 27-10 Dallas over Denver
SB13: 35-31 Pittsburgh over Dallas
SB14: 31-19 Pittsburgh over LA Rams
SB15: 27-10 Oakland over Philadelphia
SB16: 26-21 San Francisco over Cincinnati
SB17: 27-17 Washington over Miami
SB18: 38-9 LA Raiders over Washington
SB19: 38-16 San Francisco over Miami
SB20: 46-10 Chicago over New England (1986)
SB21: 39-20 NY Giants over Denver
SB22: 42-10 Washington over Denver
SB23: 20-16 San Francisco over Cincinnati
SB24: 55-10 San Francisco over Denver
SB25: 20-19 NY Giants over Buffalo
SB26: 37-24 Washington over Buffalo
SB27: 52-17 Dallas over Buffalo
SB28: 30-13 Dallas over Buffalo
SB29: 49-26 San Francisco over San Diego
SB30: 27-17 Dallas over San Pittsburgh (1996)
SB31: 35-21 Green Bay over New England
SB32: 31-24 Denver over Green Bay
SB33: 34-19 Denver over Atlanta
SB34: 23-16 LA Rams over Tennessee
SB35: 34-7 Baltimore Ravens over NY Giants
SB36: 20-17 New England over LA Rams
SB37: 48-21 Tampa Bay over Oakland Raiders
SB38: 32-29 New England over Carolina
SB39: 24-21 New England over Philadelphia
SB40: 21-10 Pittsburgh over Seattle (2006)
SB41: 29-17 Indianapolis Colts over Chicago
SB42: 17-14 NY Giants over New England
SB43: 27-23 Pittsburgh over Arizona (2009 - most recent)
(see related question)