Get up now and go and find Robert Kilroy-Silk. Smile in a warm, friendly sort of way, then punch him on the nose. Now go and find Robert on television, despite my best endeavours, this is still relatively easy to do. Wait for a close-up, same smile, and punch him on the nose. If you followed the instructions carefully, you will have noticed a distinct difference. On the one hand, you were suffused with a sense of public-spirited righteousness; on the other, you're probably dribbling blood. That's the difference between reality in life and reality on television.

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.

Once upon a time, a historian told me that the most important choice a new historian could make was of his or her specialist subject. Most of the good stuff was far too overcrowded, so you had to pick about in the exotic and extinct. His recommendations were the Picts or the Minoans, because hardly anything was known about them and you could spend a happy lifetime of speculation.

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.

All my life I've been aware of the Second World War humming in the background. I was born 10 years after it was finished, and without ever seeing it. It formed my generation and the world we lived in. I played Hurricanes and Spitfires in the playground, and war films still form the basis of all my moral philosophy. All the men I've ever got to my feet for or called sir had been in the war.

We like to see death as an unfair conspiracy, and what we want is a magic practitioner, a combination of Dr Watson and Sherlock Holmes.

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.