San Francisco's 2-0 win Thursday night on Fox earned a 7.8 fast national rating and 12 share, down 12 percent from last year's St. Louis Cardinals-Texas Rangers matchup. The previous low was an 8.1 for the 2008 Philadelphia Phillies-Tampa Bay Rays series.
Fox said Friday the rating was up 3 percent from the Giants' rout in Game 1 on Wednesday.
The "Thursday Night Football" Buccaneers-Vikings game on NFL Network went up against the World Series for the first time and had 5.2 million viewers, not including fans in the Tampa and Minneapolis areas who watched simulcasts on local channels. That's down from a season average of 7.1 million. The World Series was watched by 12.3 million people on Fox, which is available in about 60 percent more homes than NFL Network.
Ratings represent the percentage of all American homes with televisions tuned to a program. Shares represent the percentage of all homes with TVs in use at the time.