It's a great historical joke that when the Spanish met the Aztecs, it was a blind date made in serve-you-right heaven. At the time, they were the two most unpleasant cultures in the entire world, and richly deserved each other. Still, the story of how stout Cortes blustered, bullied and bludgeoned his way to collapsing an entire empire with a handful of contagious hoodlums is astonishing.

Nobody ever forgets their first night in the bush. It's among the precious, meagre handful of life firsts that remain indelible.

Beautifully shot, impeccably paced, it was a clear, unrelenting look at the National Trust, its friends and enemies, and it makes you want to burn your passport and beg the Luftwaffe to have another go.

Like most parents, I've been stumped by homework, the big questions, such as: 'What is the point of geography - the pilot always knows where we are going?'. Answer: 'If you didn't know any geography, people would think you were an American, and you wouldn't be able to put them right because you wouldn't know where they live.'

Facts are what pedantic, dull people have instead of opinions.

Television is a constant stream of fact, opinions, lies, moral dilemmas, plots: an infinitely complex and sophisticated torrent of information. How could it not make you cleverer? The only people who ever thought television rotted the brain and made kids dumb were those with a vested interest in other ways of learning, or those who were intellectually insecure, usually about books.

A broadsheet obituarist once pointed out to me that veteran soldiers die by rank. First to go are the generals, admirals and air marshals, then the brigadiers, then a bit of a gap and the colonels and wing commanders and passed-over majors, then a steady trickle of captains and lieutenants. As they get older and rarer, so the soldiers are mythologised and grow ever more heroic, until finally drummer boys and under-age privates are venerated and laurelled with honours like ancient field marshals. There is something touching about that.