I always wanted to be an explorer, but - it seemed I was doomed to be nothing more than a very silly person.

I've been lucky enough to stand on both poles, but the place that seemed the remotest to me was Butugychag, a former gulag in Siberia. It is completely cut off from the rest of the world.

I wanted to be an explorer, but gradually found the world had been explored and that there was nowhere left, really. Once they climbed Everest in 1953, when I was 10 years old, I thought, 'Well, that's pretty much it now.' But the idea of travelling and exploring and adventure was very strong.

There is nothing better than playing a scene with John Cleese or Maggie Smith. It's electric. But I don't think I'm the sort of person who needs to have an outer ego in order to produce something. I realised that through the travel programmes.

The fact that drilling won't solve every problem is no excuse to do nothing at all.

Ronnie could turn himself into any character. He did it with an effortless ease.