claim: Doug Petrie made a cameo in Dr. Horrible's Sing-Along Blog.
evidence: LR6 Radio Mitre is a radio station in the city of Buenos Aires , Argentina .. Buenos Aires. Buenos Aires. Argentina. Argentina. It is owned and operated by Grupo Clarin .. Grupo Clarin. Grupo Clarin. It was created on August 16 , 1925 under the name of The Nation Broadcasting LOZ .. During the government of Juan Domingo Peron , it was nationalized and eventually re-privatized in October 1983 .. Juan Domingo Peron. Juan Domingo Peron. In 1985 , it moved to its current facility in 2668 Mansilla , Recoleta .. It is acquired by Grupo Clarin in 1992 .. Grupo Clarin. Grupo Clarin. Transmits on 790 kHz AM .. kHz. kHz. There is a representative of the radio in the city of Cordoba called Mitre 810 .