Not sure people realize - not all ads air in all markets. I think there is a regional hierarchy. The smaller markets dont sell as much ad time.
Im fairly certain I wont be hearing about a NYC Lawyer’s services in po’dunk South Central, PA.
The local FM station that carries Rush has almost no local advertising at all - (I think that’s why we get so many of the parody ads during EIB) - Just the boilerplate sponsors (Carbonite...etc...)