This week, Professor John Lloyd his curator Jo Brand welcome a fashion historian with a taste for nautical chic, Amber Butchart; a quizzer with a business head and 57 trillion entries in his address book, Jack Waley-Cohen; and a comedian who's as big Down Under as he is internationally, Jimeoin.

This week, the Museum's guests investigate a failed cure for malaria that made the world go crazy for mauve; an inventive use of adverbs that will obsess inventive punsters; and a new unit of velocity for compressed curd.

Researched by Anne Miller of QI and Mike Turner.

The production coordinator was Sophie Richardson.

The producers were Richard Turner and James Harkin.

It was a BBC Studios Production.