Oakland Raiders : `~Champion`: Super Bowl XVIIISuper Bowl XVIII : `Runner-up`: Washington RedskinsWashington Redskins : `~Champion`: Super Bowl XXVI
[Human]: What do you think of the Oakland Raiders? [Assistant]: I know they haven't had a really strong season for a long while. Did you know the last time they won the Super Bowl was Super Bowl XVIII? [Human]: No I did not know that. Did you know the runner ups were the Waashington Redskins for that Superbowl. 
Actually, the Oakland Raiders won the Super Bowl XXVI. They beat the Washington Redskins in that game. They also won the Super Bowl XVIII against the Miami Dolphins.