The Kansas City Chiefs' 32-29 win Sunday over the Buffalo Bills was the most-watched AFC Championship game in history with 57.4 million viewers on CBS, according to multiple reports. That eclipsed the 55.

Austin Karp of the Sports Business Journal reported Tuesday that the Chiefs’ 32-29 win over the Bills was seen by 57.4 million people on television. A year go, the Chiefs’ 17-10 win over the Ravens set a record with 55.5 million viewers. That number was topped by nearly 2 million viewers on Sunday.

In this season’s Championship Game of the AFC playoffs, the Kansas City Chiefs are the favorites, but by less than a field goal (-1.5), over the Buffalo Bills. GEHA Field at Arrowhead