Hellenic Broadcasting Corporation (Greek: Ελληνική Ραδιοφωνία Τηλεόραση ή ERT) is the state-owned public broadcaster in Greece. It broadcasts five television channels: ERT1, ERT2, ERT3 (located in Thessaloniki city), ERT SPORTS HD are the terrestrial broadcast channels, as well as ERT WORLD, a satellite channel focused to the Greek diaspora. ERT is broadcasting also five national (ERA 1, ERA 2, ERA 3, Kosmos, ERA Sport), and 21 local radio stations (two of them located in Thessaloniki, the second major city of Greece). All national television and radio stations are broadcast through ERT digital multiplexes across the country and through satellite, via the two digital platforms (NOVA and Cosmote).