As the 1st section in this site says, lessons broadcast by radio are the cheapest way for people around the world to learn languages from native speakers. Lessons for some regions could be simple, with only one language needed for explanation. Lessons for other regions could explain in different languages at different times, and make maximum use of sound effects to teach many words to native speakers of all languages.
Broadcasters may think that if they transmit in the language of the listener, the listener does not need to learn the native language of the broadcaster. However many listeners do want to learn the language, want to learn more about the country broadcasting, and want to speak to its travelers.
BBC's web site teaches several languages, but not English and none by radio. VOA and BBC do have radio programs and websites for intermediate learners who know more than 1,000 words of English, generally the middle classes and elites.
China Central Television and Chinese Radio International (same lessons are at Confucius Institute) have Chinese lessons, and Deutsche Welle has German lessons, for beginners. These lessons are on the web, not broadcast.
Broadcasters and legislators may respond to ideas from the public about their programs. There are links below for Broadcasters and their Legislatures
- All India Radio, Lokh Sabha
- BBC, Reviews, Parliament
- Radio Exterior de Espana, Congreso de los Diputados