The talk radio has existed since at least the mid-1940s. Working for New York's WMCA in 1945, Barry Gray was bored with playing music and put a telephone receiver up to his microphone to talk with a bandleader Woody Herman. Thus, the first talk radio program began. Soon followed by listener call-ins, this is often credited as the first instance of the talk radio, and Gray is often billed as "The Father of Talk Radio" and the first talk show host Joe Pyne and John Nebel were also among the first to explore the medium in the 1950s.
Two radio stations-KMOX, 1120 AM in St. Louis, Missouri, and KABC, 790 AM in Los Angeles-adopted an all-talk show format in 1960, and both claim to be the first to have done so. The talk radio is not limited to the AM band. "Non-commercial" usually referred to as "public radio", which is located in a reserved spectrum of the FM band, also broadcasts talk programs. Commercial all-talk stations can be found on the FM band in Los Angeles, Boston and other cities. The commercial FM talk stations often feature hosts, whose audiences are comprised of more men than women. These talk radio programs and shows often rely less on a political discussion and analysis than their AM counterparts, and often employ the use of pranks and staged phone calls for entertainment purposes. In the United States and Canada, Satellite Radio broadcasters syndicate many conventional "AM" talk radio shows, as well as produce their own original talk shows.
The talk radio program consists of various topics of discussion, like: Ethics and Morality, Relationships, Health and Medicine, Mental health, Computers, Science, Consumer advocacy, Automobiles, Gardening, Home repair, Personal finance, Movies etc. Nowadays, the talk radio program can be heard in the internet. Talk radio listeners have two options of listening to the talk radio program. These options are podcasting and listening online. Listeners, who do not have time to listen talk radio programs and shows online, can simply download it from the talk radio website for example in the mp3 format and to listen to the favorite talk radio program when they wish.
Usually, on the talk radio, programs tend to make up a significant part of most schedules. The United States witnessed a dramatic growth in the popularity of talk radio programs during the 1990s. The most successful pioneer in the 1990s talk radio movement was a politically conservative commentator Rush Limbaugh. Limbaugh's success demonstrated that there was a nation-wide market for passionately delivered conservative commentary on contemporary news, events and social trends.
Other radio talk show hosts have also had success as nationally-syndicated hosts, including: Ben Ferguson, Lars Larson, Sean Hannity, G. Gordon Liddy, Laura Ingraham, Michael Savage, Bill O'Reilly, Glenn Beck, Larry Elder, Michael Reagan (adopted son of former President Ronald Reagan) and Ken Hamblin. A politically liberal talk radio, aimed at a national audience, has also emerged, though its ultimate success in competing with a conservative talk radio for dominance remains in a question. Air America Radio, a network featuring The Al Franken Show that was founded in 2004, billed itself as a "progressive alternative" to the conservative talk radio programs.