In 1974, after years of centralised monopoly on radio and television, the governmental agency ORTF was split into several national institutions, but the three already-existing TV channels and four national radio stations remained under state-control. It was only in 1981 that the government allowed free broadcasting in the territory, ending the state monopoly on radio. French television was partly liberalized in the next two-decade with the creation of several commercial channels, mainly thanks to cable and satellite television. In 2005 the national service Télévision Numérique Terrestre introduced digital television all over the territory, allowing the creation of other channels.