The folks on the Strip expect betting on Super Bowl XLII to break the $100-million mark for the first time. That’s what happens when you match the dynastic New England Patriots with one of the most venerated sporting institutions in the Big Apple, the New York Giants.

But will that interest translate to a record television audience? Highly unlikely. Four Super Bowls populate the Top 10 Nielsen ratings of all-time, led by Super Bowl XVI (49ers-Bengals) with 49.1 percent of households tuning in. But network TV has given way to a multi-channel universe; the last Super Bowl to crack the Top 10 was Super Bowl XX (Bears-Patriots) in 1986.

Last year’s Colts-Bears game remains the highest-rated TV show since 2000 at 42 percent. But these numbers are just for U.S. television audiences; the NFL is hoping that the international growth of the league will indeed make Sunday’s game the most-watched show ever.