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.

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.

Celebrity is a national drama whose characters' parts and plots are written by the tabloids, gossip columnists, websites and interactive buttons. The famous don't actually have to turn up to their own lives at all.

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.

An American has invented a remote control that will turn off any telly within a 20ft radius. What a marvellous device! What a splendid invention! What a really helpful and improving way of devoting your time to building something that turns off culture. Next week, I'm instigating Burn a Book Week, to encourage even more conversation. I've come up with a fantastic little device which I'll call a box of matches.

Television gives us the gift to see ourselves as we'd like to be seen.

You either get the point of Africa or you don't. What draws me back year after year is that it's like seeing the world with the lid off.