 This meant that news bulletins had to be sent to each capital city by teleprinter, to be prepared and presented separately in each city, with filmed materials copied manually and sent to each state.A purpose-built television studio was built in Sydney, and opened on 29 January 1958 – replacing temporary sound studios used since the ABC's television services launched in 1956.In the same year, technical equipment was also moved to permanent locations, while main transmitters were introduced to Melbourne and Sydney in 1957 and 1958, respectively.