Founded in 1938 as Athens Radio Station from a studio in Zappeion, with transponders in Ano Liosia and the musical branding "Tsopanakos" (I was a shepherd) by clarinetist Nikos Rellia,[1] from Goura, Corinthia.

Since it began, the station has had a significant presence in theatre, with the participation of important artists such as Alexis Solomos and Karolos Koun.

In the theatre of Sartre in 1951 Manos Hadjidakis made his radio debut, writing music of investment.

In 1952, modernisation of the radio station took place to stand out from the newly created second program.

The Hellenic Broadcasting Corporation (ERT) was reorganised as a public limited company.