John Lloyd and Sarah Millican with comedian Ken Dodd, mathematician Dr Hannah Fry and historian Greg Jenner. From 2016.

Professor of Ignorance John Lloyd and his curator Sarah Millican welcome:

* Singer, photographic playboy and failed accountant Ken Dodd

* The University College London lecturer who took up mathematical modelling to get to grips with the dating scene, Dr Hannah Fry

* The man with the enviable task of overseeing the historical accuracy of over 1,200 songs and sketches that make up Horrible Histories, Greg Jenner

The Museum's peripatetic scholars reveal how the first ever alcoholic drinks were guzzled from a spitton; why the equation Wt+l =a +r.W,+IHW(H) and Hl+l = b + r2Ht + IWH(Wt), is the formula for a happy marriage; and why you can tell a joke in Liverpool that that won't get a laugh in London.

Researchers: Anne Miller and Molly Oldfield of QI.

Producers: Richard Turner and James Harkin.

A BBC Radio Comedy production for BBC Radio 4 first broadcast in January 2016.