Junctions of the M25.
Love that - could probably give it a fair crack of the whip myself as well.
Mine would be the Eurovision Song Contest and, if I got through, Jilly Cooper novels. I may also steal Verbena37's Outlander round in the unlikely event I got to the final.
My cousin was on it years and years ago. He pissed the specialist subject round (life and works of Thomas Hardy). Crashed and burned in the general knowledge round (although I think that's quite easy now).