My grandad was the most wonderful man. He was a bit like me. He was basically a country bumpkin but he did well; he became managing director of quite a successful company but all he really wanted to do was to come home, put his disgusting old trampy clothes on and go for walks across the country.

My father was the marketing director of a biscuit manufacturer in Berkshire. It meant that every Friday he brought home huge bags of broken biscuits that could not be sold.

No, I'm very patriotic. I'm very British and I'm very pro-British, but that in no way means you therefore exterminate anybody else you meet who doesn't come from Britain!

My own marriages have not been a great success. I've been divorced twice and when I first got divorced it hit my parents very hard.

But then we got to Victoria Falls at the end: at dawn it's one of the most beautiful sights you will every see. We stayed at The Victoria Falls Hotel, a luxury hotel that looks out over the falls.

Whenever I go abroad, I never return home craving roast beef and Yorkshire pudding or fish and chips. Instead all I really want is a particularly good lamb dopiaza.

I once went to La Boca district, where you can watch street performers doing tango, and joined in. But it's very hard to dance in Birkenstocks.

I first visited Buenos Aires at the end of 2015 while filming the latest series of 'Chris Tarrant: Extreme Railways', and I liked it so much I've been back twice with my wife. It's so much nicer than I expected - like a warmer, bigger, wider version of Paris.

Sometimes I'll go fishing with a group of friends but I am just as happy sitting out there on my own. The strange mixture of peace and challenge that comes with being a dedicated angler has always been intoxicating to me.

There's a point at which we have to control our borders. The bottom line is the world is full up and the population on the planet is getting bigger and bigger and there ain't much room any more. So, how's it going to work? I don't know.