Soviet Central Television
The Central Television of the USSR (Russian: Центральное телевидение СССР, romanized: Tsentral'noye televideniye SSSR; abbreviated CT USSR, SCTV [Russian: ЦТ СССР, romanized: TsT SSSR]) was the state television broadcaster of the Soviet Union. Initially, the service was operated, together with the national radio service, by the Ministry of Culture.
Source: Wikipedia — Soviet Central Television (CC BY-SA 4.0)