John Lloyd and Phill Jupitus are joined by author Richard Osman, professor Kevin Dutton and curator Sandra Knapp. From 2014.

The Professor of Ignorance John Lloyd welcomes his latest curator Phill Jupitus.

With the hugely knowledgeable co-star of Pointless and author Richard Osman; author and professor Kevin Dutton; and the Natural History Museum's curator of Solanaceae (the order of plants that includes potatoes, tomatoes and deadly nightshade) Dr Sandra Knapp.

The Museum's Steering Committee discusses:

* Why psychopaths don't seem to blink

* Why cushions on beds are the most pointless things in existence

* How an 18th century Swedish botanist knew everything

* The evolutionary advantages of smiling

* The confectionary milestone that was Cadbury's Dairy Milk

* the culinary revolution of freeze-dried potatoes that taste of Styrofoam.

Researchers: James Harkin and Stevyn Colgan of QI.

Producers: Richard Turner and Dan Schreiber

First broadcast on BBC Radio 4 in 2014.