National Iranian Radio & Television
National Iranian Radio and Television, or NIRT for short, was the first Iranian state broadcaster, which was established on June 19, 1971, following the merger of the country's radio and television services. It operated up until the Iranian Revolution in 1979, after which NIRT became the Islamic Republic of Iran Broadcasting (IRIB).
Logo: On a black background, we see the NIRT symbol, which consists of two heraldic lion rampants facing opposite each other, and the text "رادیو تلویزیون ملی ایران", all in white.
Music/Sounds: A dramatic-sounding fanfare with off-key piano notes.
Availablity: Extinct. In 1979, the Iranian revolution forced the channel to rebrand to fit with its new Islamic standards.
Legacy: Aside from the dark background, the music and design of the logo which may freak out first-time viewers, this is one of the rarest logos ever discovered.