The Kansas City Chiefs' victory over the Philadelphia Eagles in Super Bowl LVII was the most-watched U.S.-based telecast of all time, according to revised Nielsen ratings released Tuesday.
The Chiefs' 38-35 win on Feb. 12 at State Farm Stadium in Glendale, Ariz., drew an average of 115.1 million viewers across all platforms -- nearly 2 million more than Nielsen's previous announcement in February.
The updated numbers surpass the previous record of 114.4 million viewers for the New England Patriots' win over the Seattle Seahawks at Super Bowl XLIX on Feb. 1, 2015.
Tuesday's change was "the result of a thorough review by Nielsen that revealed irregularities in the encoding that enables Nielsen's measurement of TV viewing as well as in the measurement of out-of-home viewing," Fox Sports said in a statement.