@res260 @bagder on free-TV, radio and podcasts, other than public-service broadcasters – ads without tracking are *the only* source of revenue.

You don't even get a precise number of views for the TV or radio ads, having to use sampling of a small subset of viewers/listeners. Yet they still generate approx $235bn & $23.1bn global annual revenues, respectively (sources: imarcgroup.com/television-adve & finance.yahoo.com/news/traditi)