Although AM and FM Broadcast Radio give very good signals here in the US, they do not travel very far.  For places where longer-distance broadcasts are required, and for much of the 20th Century, people tuned to Shortwave Stations for Sports, News and Music.  Famous Stations such as the BBC, ABC and NBC broadcasted the news around the world.

A Spanish SW Station, recorded by Derek Brown (W4DTB)

Radio Netherlands, recorded by Derek Brown (W4DTB)