TV Coverage Map from the 506: Week 2

It's another week of descending into the flaming, annoying hell called "Sunday at a Sports Bar" for me, because the Seahawks game won't be on local TV in Northwestern Ohio. The 506 has the details, which include the fact that Hawks/Niners will be broadcast in Milwaukee. That's great, but why?

Week 2 US Pop. with over-the-air access to Seahawks: 39.2 million
Week 2 Percentage of US Pop. with OTA access to Seahawks: 12.9%