Why have they gotten so long?
There are airchecks of WBBM from 1983-85, and the commercial breaks appear to be about 2 minutes. Now, there are only a few markets (Bend, Klamath Falls, and Elmira-Corning) that have breaks of that length. Everyone else has extended to like 6 minutes, and some stations even longer. For example WPOI in Tampa. Sure they run 101 minutes commercial-free, but they follow that up with 10 minutes of nonstop commercials. So, why are the breaks so long today?