Fans watching from home weren't deterred, either. An estimated 108.4 million television viewers saw the Baltimore Ravens beat the San Francisco 49ers 34-31, making it the third-most-viewed program in television history. Both the 2010 and 2011 games hit the 111 million mark.
As for possible culprits, it couldn't be blamed on a case of too much demand for power.
Meters showed the 76,000-seat stadium was drawing no more electricity than it does during a typical New Orleans Saints game, according to Doug Thornton, the Superdome manager.
He also ruled out Beyonce's electrifying halftime performance. She brought along her own generator.
Officials with the utility and the Superdome were quick to note that an NFL game, the Sugar Bowl and another bowl game were played there in recent weeks with no apparent problems.
Determining the cause will probably take days, according to Dennis Dawsey, a vice president for distribution and transmission for Entergy. He said the makers of some of the switching gear have been brought in to help figure out what happened.
Cinthia Hedge-Morrell, chairwoman of the New Orleans City Council's Utility Committee, called an emergency committee meeting Friday with Entergy representatives and others, seeking additional information.
The blackout came after a nearly flawless week of activity for football fans in New Orleans leading up to the big game.
Mayor Mitch Landrieu told WWL-AM on Monday that the outage won't hurt the city's chances, and he joked that the game got better after the blackout: "People were leaving and the game was getting boring, so we had to do a little something to spice it up."
New Orleans last hosted the Super Bowl in 2002, and officials were hoping this would serve as the ultimate showcase for the city's recovery since Hurricane Katrina in 2005. The storm tore holes in the roof of the Superdome and caused water damage to its electrical systems, and more than $330 million was spent repairing and upgrading the stadium.
Sunday's Super Bowl was New Orleans' 10th as host, and officials plan to make a bid for an 11th in 2018.