I was googling away like mad just in case I was being thick!

Heh, sorry about that. Mark and Brian are a pair of Los Angeles disk jockeys with a widely-syndicated morning show. A few years ago, I used to listen to them before I got sick of them.

Each morning they would do an installment of a long-running contest where the clues were so obscure that even googling for the answers would produce nothing. The only way to get the answers was to a) know the complete list of every other incorrect guess that had been made on-the-air so far, as well as b) lots of library research and consulting experts in whatever field the question was related to.

By listing all of the prior guesses and saying it was for a radio contest, it sounded a lot like that.