John Lloyd and Humphrey Ker are joined this week by comic actor and writer Robert Llewellyn, comedian Cleo Rocos and cybernetics expert Prof. Kevin Warwick.

Robert Llewellyn, famous for playing Kryten in Red Dwarf, as well as host of Carpool and Scraphead Challenge, plus a highly successful novelist, donates an elm tree, which are dying out because of Dutch elm disease - which is not actually Dutch.

Cleo Rocos, co-star of The Kenny Everett Video Show, president of the Tequila Society and expert on drinking provides the Museum with a field of agave plants, which are used to make tequila. Cleo is the only female tequila maker in the country.

Kevin Warwick, professor of cybernetics at the University of Reading, who has implanted a chip in his arm to open doors, and designed of robots so scary they can only been seen by people over 18, offers the Museum a thinking machine in order to settle the argument about whether machines can think for themselves or not.