In my town (in Czechoslovakia), of the people of my generation, only those who listened to the BBC or VoA knew who the Vaclav Havel was, who became the first president after the fall of communism. I can't imagine the chaos that would happen if no one had any true information at the time of the fall of communism.
I might have been mistaken on that one, I'll fully admit. I am not sure if it was Głos Ameryki or Radio Wolna Europa - but my comment applies to both of them, anyway.