with other owners – has in recent years added more liberal talk stations to their portfolio. These have primarily come from the conversion of AM facilities, most of which formerly had adult standards formats. Many complaints (all radio stations are required by the FCC to maintain, in their public files, copies of all correspondence from the public relating to station operations – for a period of three years from receipt) have been received from fans of this musical genre (Tony Bennett, Frank Sinatra, big band music," etc.) – but the left-leaning talk programming leans toward a much younger demographic, a group that advertisers covet. More recently, however, Clear Channel has been dropping liberal formats in favor of their own Fox Sports Radio network. By 2014, most liberal talk stations had abandoned the format, forcing hosts to find other ways to distribute their programming. Liberal opinion radio has long existed on the Pacifica network, though only available in a small number of major cities, and in formats that more often act as a volunteer-run community forum than as a platform for charismatic hosts who would be likely to attract a large audience. The one major host to become popular on the network is Amy Goodman, whose Democracy Now! interview and journalism program is broadcast nationwide. Conservative critics have long complained that the long-format news programming on National Public Radio (NPR) shows a liberal bias, although this is disputed by Fairness and Accuracy in Reporting (FAIR), a progressive media criticism organization, which found that, for example, "representatives of think tanks to the right of center outnumbered those to the left of center by more than four to one: 62 appearances to 15." National Public Radio itself denies any partisan agenda. Politically oriented talk programs on the network are in the mold of Talk of the Nation, which was designed to be a soundboard for the varied opinions of listeners. While politically oriented talk is still heard on the AM dial (mostly the conservative format), it has seen some expanding onto the FM dial. One notable example was WPGB in Pittsburgh, which switched to a talk format in 2004 after years of having several different music formats, branding itself as "FM News Talk 104.7" due to the relative uncommonness of politically oriented talk on the FM side of the dial even in 2013 while FM talk, in general, has expanded. Owned by Clear