none they all made it
No team has ever been accused of, or found to have been cheating in a Super Bowl.
No, not recently.
As of 2010, Detroit, Cleveland, Houston and Jacksonville have never been to the Super Bowl.
There has been no NFL team to win the Super Bowl with 86-0 being the final score.
There has never been a shutout in the Super Bowl. The closest was when the Dallas Cowboys held the Miami Dolphins to a field goal in Super Bowl VI in New Orleans.
As of Super Bowl XLII, there have been two Super Bowl games where neither team committed a turnover: Super Bowl XXV - Bills and Giants Super Bowl XXXIV - Rams and Titans
There has never been a team to play a Super Bowl on their home field. The closest was Super Bowl XIV when the Pittsburgh Steelers beat the Los Angeles Rams at the Rose Bowl in Pasadena, CA. and Super Bowl XIX when the San Francisco 49ers beat the Miami Dolphins at Stanford Stadium. The NFL awards the Super Bowl to a city four years in advance. If a team won their conference championship and the Super Bowl was scheduled on their home field, the game would go on as planned.
The Arizona Cardinals who were a charter team when the NFL founded in 1920 and has never played in the Super Bowl.
By winning the Super Bowl.