Controversial biologist Rupert Sheldrake kindly donates some of his time to discuss telephone and pet telepathy. The team are also joined by James O'Malley of The Pod Delusion.

Are successive US administrations really in contact with visitors from other planets, and what evidence is on the table for such claims? Hayley, Marsh and Trystan try to find out with David Griffin of Exopolitics.org.uk.

A col­lec­tion of mate­r­ial recorded for past shows that, for one rea­son or another, was left on the cut­ting room floor. Almost com­pletely unedited it has been bun­dled together into some­thing that may be of interest… Included in this edition are: Material including news items and the quackery quote game from the previously unpublished episode...

Andrew is a bar­ris­ter prac­tis­ing from cham­bers in Lincoln’s Inn, London. With lit­i­ga­tion in the Simon Singh ver­sus BCA libel case still ongo­ing, Andrew dis­cusses the wider impli­ca­tions for skep­tics who are keen to express their views in public.

An infamous figure in British conspiracy lore, Tim Matthews has a past like no other. From involvement with fringe politics, to accusations of employment as a 'state asset' out to discredit ufology, the mention of his name is enough to unnerve the paranoid. More recently Tim has been treading boards in English wheat fields.

Ariane is a comedy writer and blogger. She's also creator of the growing Atheist Bus campaign, a counter to apocalyptic ads run by religious groups on public transport. She talks about this and her new book, 'The Atheist's Guide to Christmas'.

We've already had some emails querying where episode 19 has gone. Unfortunately we experienced huge technical problems during the recording that left us without a show to put up. What we have managed to salvage will go out at some point as an extra towards the end of the month. Sorry for the disappointment/relief....