The 143 telecasts averaged a 6.4 household rating, up from 3.8 in 2012. The Royals ranked sixth among all clubs, up from 15th last season.
The highest single-game rating of 12.3 came on Aug. 13 against Miami after the Royals had won 19 of 24 games following the All-Star break and moved into second place. The Royals lost that night, 1-0, in 10 innings.
FOX Sports also is claiming domination of summertime TV viewing in Kansas City as the No. 1 channel in prime time on 45 nights, June through September.
Dick Kaegel is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.