No they mix, it's just depends on proximity and if there is a team currently in the state.
Swanton, Liberty Center and Grand Rapids, OH get both. Where I live I have 3 teams (Chicago, Minny, St Louis)
Haha, yeah I grew up in Grand Rapids (OH) and we always had the wings on DTV....imagine my displeasure when I moved 18 miles CLOSER to Det and lost my Wings coverage on FSD. I'm leaning towards switching to cable since I've been assured that I can watch them on FSD. Depends on what kind of break DTV offers me to stay and pay for CI.