It's not just Cub fans rooting for a Game 7. The folks at Fox are opening rooting for it too. The ratings for this World Series have been tremendous. From Variety...
The Chicago Cubs fought back Sunday night to avoid losing the World Series at Wrigley Field, beating the Cleveland Indians 3-2, and Fox execs likely let out just as big a cheer as Bill Murray at the prospect of at least one more game’s worth of ad revenue. Game 5 of the Chicago-Cleveland Series brought in a massive audience of 23.6 million and a 6.7 in the advertiser-coveted 18-49 demographic in Nielsen’s preliminary ratings. That’s a 37% improvement over Game 5 of 2015’s New York Mets-Kansas City Royals Series, which was that Series’ final game, as the Royals clinched the title with a 7-2 win. This was the biggest Game 5 audience since the 1997 Florida Marlins-Cleveland Indians World Series (24.2 million).
It's not just a huge audience. It's the right audience for advertisers.
Plus the old guys like me.