A godless Christmas show of music and comedy.
Performers appearing on one or both nights include Richard Dawkins, Josie Long, Richard Herring, Ben Goldacre, Natalie Haynes, Stewart Lee, Simon Singh, Jo Neary, Darren Hayman, Waen Shepherd, The Martin White Mini Fax Machine Orchestra, Peter Buckley Hill, Robin Ince, Mark Thomas, Phill Jupitus and Gavin Osborn.