It’s the gag in the opening monologue, at 0’56” to be precise, about the passing of the NHS Bill. I think the show’ll be there to listen to or download for another week or so, which is probably about right as the joke itself’ll probably make less sense as time passes.
Anyway, this blog post is a shameless brag really, as I’m pretty chuffed to have a second BBC broadcast credit, even if it has been a couple of years since the first. I shall see if I can narrow down the intervening period between the second and third…