Advertising is accepted by consumers of news, music, sports, entertainment across all platforms, but in varying degrees. My reference to advertising, particularly the eight minute - twelve unit commercial breaks was in addition to the points which I made and those made in previous posts within the thread regarding alternative entertainment sources available now and in the near future to listeners, viewers and readers; Smart Speakers in particular. At least four extensive studies regarding listener tolerance have indicated that listeners don't count minutes of commercials as much as they have an inherent feel for units in a commercial cluster. As such, a 15 second commercial weighs as much as a 30 or 60. After the third unit, the tolerance to endure another commercial diminishes and the desire to check alternative entertainment sources increases. This noted, listeners aren't particularly receptive to having multiple commercial breaks within a given time frame, say an hour. Broadcasters have chosen to play two lengthy commercial clusters per hour rather than five or six shorter commercial clusters per hour, knowing full well that many listeners will leave but are likely to return. News-sports-talk radio is an exceptiion because of the nature of the format. A significant number of active listeners especially those in cars where radio listening seems to be at its optimum, push scan or any one of the number of presets after the third or fourth commercial unit. At-work listeners, particularly those on job sites as less inclined to push scan because they're busy welding, plastering, painting or dealing with customers. Working. Still there comes a time, often triggered by a long commercial break as much as an undesirable song, where the person having control of the at-work radio changes the station. In this case the probability of returning to the previous radio station is diminished. With the integrated dashboard becoming more prevalent, in-car radio listening will face even greater challenges. Hence my ten year prognostication for the demise of OTA radio as we know it.