TV networks and sports leagues rely heavily on Nielsen to to tell them how many people at home watch football games, tennis matches and auto races. Counting viewers in bars, hotels and offices? That has sometimes created a bone of contention.

⁠Super Bowl 2025 live: The Eagles and Chiefs face off with the Lombardi Trophy on the line. USA TODAY Sports is providing live coverage, updates, highlights and more from Super Bowl 59. The stage is set, the cameras are about to start rolling and soon ...