The precursor to the National Broadcasting Service (NBS Radio) was Radio Guardian, established on October 13, 1957, by the Thompson Group, the British owners of the Trinidad Guardian newspaper. On November 1, 1969, the Government under Dr Eric Williams acquired Radio Guardian and Trinidad and Tobago Television (ttt). Radio Guardian was renamed the National Broadcasting Service of Trinidad and Tobago of Trinidad and Tobago (NBS Radio 610). The radio broadcast and production studios continued to be located at 17 Abercromby Street in downtown Port-of-Spain, the capital city.