I got there about ten minutes late (due to aforementioned long walk), but it seemed to be a 'beginner's guide to Terry Pratchett' sort of do, I guess to try and drawn in newcomers to TP. The most I contributed were a few smart-aleck remarks and managing to recommend the novelisation of Doctor Who: Shada to someone (long story: TP was compared to Douglas Adams, and I recommended the book because it was based on a Douglas Adams script).
Four minutes? That's ages! What if I get bored? I need a television, a couple of books. Anyone for chess? Bring me knitting.
-The Eighth Doctor, defiant in the face of death, in Doctor Who: The Night of the Doctor