CGTN Documentary
CGTN Documentary (formerly CCTV-9 until 31 December 2016) is a television channel operated by Chinese state broadcaster China Central Television (CCTV) as a part of CGTN group of international channels, broadcasting documentaries in English language. It used to share the "CCTV-9" name with its sister documentary channel in Mandarin Chinese. The channel has also been known to carry some Mandarin-language programmes with English subtitles; they broadcast new programming between 19:00 and 23:00 Beijing time, and repeat archival programming at other times. In Macau, TDM relays the channel on LCN 74 on digital terrestrial television. In Hong Kong, RTHK used to relay the channel as RTHK TV 33 on LCN 33 digital terrestrial television, but on 29 May 2017, RTHK began relaying CCTV-1 in its place after a short filler.