The David Tennant Treat 4 Today was broadcast in 2010 on Radio 1. When we first used it as a David Tennant Treat 4 Today as very few people had heard the original broadcast!
On Jo Whiley's Show she found some "silly things that we got the guests to record" from a while ago.
(Please do not link elsewhere on the internet to the MP3 as the file will later be moved. Instead please link to this page.)