BBC In 1951, in conjunction with Oxford University Press the BBC published "The BBC Hymn Book" which was intended to be used by radio listeners to follow hymns being broadcast. The book was published both with and without music, the music edition being entitled "The BBC Hymn Book with Music". The book contained 542 popular hymns. The BBC provided the world's first teletext service called Ceefax (near-homonymous with "See Facts") on 23 September 1974 until 23 October 2012 on the BBC 1 analogue channel then later on BBC 2. It showed informational pages such as News, Sport and the Weather. on
BBC news and sport station. In 1997, BBC News 24, a rolling news channel, launched on digital television services and the following year, BBC Choice launched as the third general entertainment channel from the BBC. The BBC also purchased The Parliamentary Channel, which was renamed BBC Parliament. In 1999, BBC Knowledge launched as a multi media channel, with services available on the newly launched BBC Text digital teletext service, and on BBC Online. The channel had an educational aim, which was modified later on in its life to offer documentaries. In 2002, several television and radio channels were reorganised. BBC Knowledge