Baseball remains a regional sport and local TV ratings are just fine, when you consider a team provides 163 games of content vs. 12.
So far through 2018 Yankees games are drawing the highest average viewership of any program, sports or otherwise, cable or broadcast, in primetime, in the NYC market. BTN carries regionally poulat mod tower games. If Comcast can reject the highest watched live programming in the nation's largest market, on weekday primetime, I think they can hold out against 12 Saturdays worth of mediocre regionally appealing football, and mostly replays and Olympic sports.