The Choir appeared on The One Show on Wednesday 1 December. The show ran a feature about the history of the Christmas carol, which was presented by celebrity voice coach Carrie Grant (Fame Academy, Pop Idol).
Ms Grant interviewed the Director of Music at King's, Stephen Cleobury, and the Dean, The Revd Dr Jeremy Morris. The programme also included footage of the Choir singing Christmas carols.
You can still watch the programme on the BBC iPlayer until Wednesday 8 December.
To find out more about the Christmas Eve service at King's see A Festival of Nine Lessons and Carols.
(News item updated: 2 December)