With the 'build -up' he was given in his introduction, it was not neccesary for Lord Bragg to pass himself off as anything. I got the impression that those contrbuting, did not really see that the joke of the whole thing, was rather on them.

Or that they may have some idea but were trying very hard not to see this or to deflect it somewhere else - by taking part.

It was slightly ammusing but almost totally, a self-indulgent middle-class in-joke.

A bit like Radio 4 itself.