Garrison Keillor tunes in to some of America's most extraordinary radio preachers. They include the country preachers of Virginia, for whom Hell is hot and Heaven real, the "politically correct" preachers of Atlanta who bark at their congregations, and the jazz preachers of New Orleans who sing their sermons. Garrison Keillor catches the mood as he performs with his own band the Hopeful Gospel Singers. Producer Jolyon Mitchell