RTÉ One is an Irish free-to-air flagship television channel owned and operated by RTÉ. It is the most-popular and most-watched television channel in the country and was launched as Telefís Éireann on 31 December 1961, it was renamed RTÉ in 1966, and it was renamed as RTÉ 1 upon the launch of RTÉ 2 in 1978.
