Jimmy Carr has got previous when it comes to taking comedy seriously. He co-wrote with Lucy Grieves The Naked Jape: Uncovering The Hidden World Of Jokes, which was published in 2006. Like Bob Monkhouse, who he often reminds me of, he is clearly very much a student of the art of the punchline.

I can’t, however, recall Bob Monkhouse presenting an edition of the long-running BBC2 science strand Horizon. but here, as part of the BBC’s Landmark Sitcom Season, Carr digs a bit deeper into what giggling is all about.