Radio news made its appearance in the 1920s. The National Broadcasting Company (NBC) and the Columbia Broadcasting System (CBS) began running sponsored news programs and radio dramas. Not just something to be enjoyed by those in the city, the proliferation of the radio brought communications to rural America as well. News and entertainment programs were also targeted to rural communities.
Television combined the best attributes of radio and pictures and changed media forever. As on the radio, quiz shows and games initially dominated the television airwaves. But when Edward R. Murrow made the move to television in 1951 with his news show See It Now, television journalism gained its foothold. As television programming expanded, more channels were added.
Actions speak louder than words means talking about something isn't going to make it better, you should take action so it helps solve the problem. I wouldn't say it talks about proving anything wrong based on the definition.
