Television in the 1960s & 70s had just as much dross and the programmes were a lot more tediously patronising than they are now. Memory truncates occasional gems into a glittering skein of brilliance. More television, more channels means more good television and, of course, more bad. The same equation applies to publishing, film and, I expect, sumo wrestling.

A country scratching a lazy irritation at sagging doorjambs and late trains, whose greatest attribute is a collective, smelly tolerance, where a chap will put up with almost everything, which means he won't care about anything enough to get out of a chair.A country of public insouciance and private, grubby guilt, where you can believe anything as long as you don't believe it too fervently. A country where the highest aspiration is for a quiet life.

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.'

America didn’t bypass or escape civilization. It did something far more profound, far cleverer: it simply changed what civilization could be.

He (Jeremy Clarkson) is the last man standing on the beach commanding the glaciers' melt waters to go back

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.

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.