I don't see any kind of historical trends on either TV or radio listening time in the article, which leaves the question of why audience numbers are changing the way they are. For instance, if the 18-49 radio audience is unchanged very much year-to-year, that means the TV audience has absolutely cratered, on the scale of the dinosaur killer asteroid. OTOH, if the radio audience is up significantly, that means the TV audience has fallen to meet it.
I don't see any kind of historical trends on either TV or radio listening time in the article, which leaves the question of why audience numbers are changing the way they are. For instance, if the 18-49 radio audience is unchanged very much year-to-year, that means the TV audience has absolutely cratered, on the scale of the dinosaur killer asteroid. OTOH, if the radio audience is up significantly, that means the TV audience has fallen to meet it.