Believe It! Radio 4, 11.30am

The guests in this episode include Ian

McKellen (right) and

Arabella Weir as

Richard Wilson decides to throw the ultimate party.

However, there are some details worrying him, including who should receive an invitation, who will actually show up and who’s making the canapés.

Kit Green is also organising a bash in Over The Top (Radio 4, 12 midday), but his party takes place in the BBC archives and celebrates extravagance in all its forms, with contributions from Laurence Llewelyn-Bowen.

The Verb (Radio 3, 10pm) comes live from The Queen’s Library at Windsor Castle and features a new work from Poet Laureate Simon Armitage.