北京电视台
Starting from 1 May 1973, Beijing Television began broadcasting experimentally in color on its second channel every Tuesday, Thursday, and Saturday using the PAL-D system, and fully converted to color broadcasting by 1977. On January 1, 1978; its flagship news broadcasts were officially launched. On May 1 of the same year, with the approval of the CCP Central Committee, BTV, which celebrated its 20th anniversary was officially renamed CCTV (China Central Television, ) and a new logomark debuted. In 1979, the iconic butterfly logo made its debut, which would be used as the corporate identity of the CCTV network for the next two decades.