It's 69 years since Portsmouth won the FA Cup, and an even more mind-boggling 81  since Cardiff City took the trophy back to Wales.

So although this afternoon's starting elevens hadn't been announced at the time we went to press, I've a sneaking suspicion we could see several changes from those original line-ups.

This year's FA CUp has been packed with shocks and surprises (who can forget Barnsley topping holders Chelsea, tee-hee?) so it's right and fitting that the final itself should reflect this.

All too often, it's an occasion that turns out to be a crushing anti-climax - but maybe, with the big boys out of the picture for once, we're in for an absolute classic.

Alternatively, maybe we're not.

Yes, Cardiff City embarked on what would be their only triumphant FA Cup campaign to date.

But also, crime novelist Agatha Christie vanished for 10 days.

There's been much debate as to why, but here comes a new theory - involving a very large alien wasp.

Felicity Kendal and Fenella Woolgar guest in this episode.

So far, mind you, the only victim has been one of his students, killed when a scratch 'n sniff patch in LeNez's soon-to-be-published book exploded in her face.