Since the Second World War, it has been estimated that each year there are millions of listeners worldwide who listen to the service live on the BBC World Service. Domestically, the service is broadcast live on BBC Radio 4, and a recorded broadcast is made on Christmas Day on BBC Radio 3. In the US, a 1954 service was put into the National Recording Registry by the Library of Congress in 2008. The broadcast has been heard live on public radio stations affiliated with American Public Media since 1979, and most stations broadcast a repeat on Christmas Day. Since 1963, the service has been periodically filmed for television broadcast in the UK. Presently, each year a programme entitled "Carols from King's" is pre-recorded in early or mid-December then shown on Christmas Eve in the UK on BBC Two and BBC Four. The programme is weighted more heavily in favour of carols sung by the choir, with only seven readings in total, not all of which are from the Bible.