BBC One launched a full colour service on 15 November 1969. At midnight the incongruously named An Evening with Petula - Petula Clark in concert from the Royal Albert Hall - was the first transmission. The channel then closed down until 10am. Speakers in the slideshow (left) include Sir David Attenborough, Controller BBC2, 1965-1969 and Lord Asa Briggs, author of The History of Broadcasting in The UK.