The Office de radiodiffusion-télévision française (ORTF; French Broadcasting and Television Office, or French Radio and Television Broadcasting Office) was the national agency charged, between 1964 and 1975, with providing public radio and television in France. All programming, and especially news broadcasts, were under strict control of the national government.
In 1945, the provisional French government established a public monopoly on broadcasting with the formation of Radiodiffusion Française (RDF). This nationalisation of all private radio stations marked the beginning of a new era of state-controlled broadcasting in France. As part of its mandate, the RDF also established a 441-line television station known as Télévision française. This station made use of the frequencies previously utilised by the Nazi-operated Fernsehsender Paris.
In 1949, the RDF underwent a name change to Radiodiffusion-Télévision Française (RTF) in order to reflect the organisation's growing focus on television broadcasting. By the end of the year, the RTF had begun transmitting television signals using the new 819-line system, which represented a significant advancement in the technical capabilities of the medium. This development allowed for the transmission of high-quality television signals and paved the way for the widespread adoption of television in France.
In 1964, the RTF was itself reformed and renamed into the ORTF. The ORTF aimed to modernise the public broadcasting service in order to better satisfy the needs of the French public in terms of information, culture, education, and entertainment. Despite this goal of modernisation and an expressed commitment to meeting the diverse needs of the public, the ORTF continued to operate under a monopoly.
From the beginning, the public broadcaster experienced fierce competition from the "peripheral stations": French-speaking stations aimed at the French public but transmitting on longwave from neighbouring countries, such as Radio Monte Carlo (RMC) from Monaco, Radio Luxembourg (later RTL) from Luxembourg, and Europe 1 from Germany (exceptionally, in 1974, RMC was allowed to set up a transmitter on French territory).