John Lloyd and new curator Dave Gorman welcome Francesca Stavrakopoulou, Alex Bellos and Jimmy Carr. From October 2011. Episode 1 of 6.

The Museum of Curiosity is, as ever, hosted by the Professor of Ignorance from the University of Buckingham John Lloyd (now with added C.B.E). For this, the fourth series, he is joined by the intensely curious comedian Dave Gorman as his Curator. Dave is the latest in a line of illustrious Museum curators: Bill Bailey, Sean Lock and Jon Richardson.

The Museum of Curiosity has a unique method for collecting exhibits. Once a week it welcomes three luminaries from widely different specialist fields and asks them to bring with them their most treasured items to donate.

The Museum's collection already boasts The Big Bang When It Was The Size Of A Grapefruit; A Pineapple; A Yard Of Silence; Nothing; A British Railways Bridge Plate; A Telepathic Sheep; A Chimpanzee Rain Dance; An Impossible Rabbit; A Gay Bomb; A Choir Of Singing Sand Dunes; National Ignorance Day (of which we know nothing); and An Icelandic Volcano (long before they were fashionable).

In the first of the new series, John and Dave are joined by comedian Jimmy Carr; documentary maker, theologian (and atheist) Francesca Stavrakapoulou; and the mathematician, Guardian South America correspondent and football author Alex Bellos.

The museum's guests later in the rest of the series are:

Philosopher Alain de Botton

Linguist David Crystal

Filmmaker Gareth Edwards

Comedian Harry Enfield

Solar physicist Lucie Green

Classically-trained comedian Natalie Haynes

New Scientist Editor Roger Highfield

Comedian Alex Horne

Rational Comedian Robin Ince

Graham Linehan

Data Miner David McCandless

Marine biologist Helen Scales

Advertising guru Rory Sutherland

Admiral Alan William John West, Baron West of Spithead GCB DSC PC

Polar explorer Sara Wheeler.