A very informative piece on Wikipedia
A piece on the use of similar medleys in broadcasting by Mike Knell
About Fritz Spiegl
Radio 4 Today Programme news item link (Real Audio file)
BBC Discussion board on the issue
The Theme Tune
[Thanks to everyone who pointed out to me that Spiegl didn't actually "write" it...]
My name is Tim Hatton and I'm a web designer based in Guildford. I'm also an enormous fan of Radio 4.