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The 405-line system was used in the Rediffusion Television cable television service in Hong Kong, established in 1957, making it both the first British colony and the first predominantly Chinese city to have television. The service of 405-line system ended in 1973, replaced by 625-line PAL system free-to-air broadcast.
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The other link is a self published site from an enthusiastic amateur and is wrong). The only interlaced video systems to have an odd number of active lines are the 405 line system (377) and the 819 line system (737), the latter having an unusually long blanking interval of 40H for both odd and even fields.
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Template talk:Hong Kong Legislative Council constituencies (2012–2016) Template talk:Hong Kong Legislative Council constituencies (2016–2021) Template talk:Hong Kong Legislative Council constituencies (2021-2025) Template talk:Hong Kong Legislative Council President elections; Template talk:Hong Kong legislative election, 1998 navbox
Analog TV systems global map, with System I in light green. CCIR System I is an analogue broadcast television system.It was first used in the Republic of Ireland starting in December 1961 as the 625-line broadcasting standard to be used on VHF Band I and Band III, sharing Band III with 405-line System A signals radiated in the north and east [1] of the country.
Channel A was never used terrestrially. The only System I Band I transmitter on Channel B was RTÉ One from the Maghera, Co. Clare transmitter during 1963–1999. Channel A was initially intended for use at Maghera but Channel B was used instead because of the risk of interference to (overspill) reception of BBC 405 line transmissions. [2]
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