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sandpit252423 · 7th Feb 2019, 10:06 pm

When I was at tech in the late 1970's in the TV lab they had a 405 colour TV from a hotel in London. 405 colour was in London only, and it did not meet British standard so was abandoned due to NTSC living up to its nickname never twice same colour. 625 was out by the time PAL was developed curing the problems of NTSC.

7th Feb 2019, 10:06 pm	#19
sandpit252423 Retired Dormant Member Join Date: Feb 2019 Location: Driffield, East Yorkshire, UK. Posts: 5	Re: 405 line colour test transmissions When I was at tech in the late 1970's in the TV lab they had a 405 colour TV from a hotel in London. 405 colour was in London only, and it did not meet British standard so was abandoned due to NTSC living up to its nickname never twice same colour. 625 was out by the time PAL was developed curing the problems of NTSC.