While reviewing A Cock And Bull Story, Mark Kermode said it had "that shambolic structure that bespeaks real thought." Having so recently bickered over "mephitic", here was a new word for the Good Doctors to quarrel about (SIMON: So it means the same as "speaks of." MARK: Yes, but it's more elegant. SIMON: Or show-offy).
A listener emailed in to say that the dictionary defined the way Mark had used "bespeaks" as archaic, but the Good Doctor happily admitted that he himself was archaic.