Why did you want to host How To Nab A Prince?
"I'm actually going away so I'm not even going to be in the country when the wedding happens, though I'll watch it where I'm going to be. I love William and Harry. I think they're just wonderful. And I think I've got swept up along with the rest of the planet about these nuptials. Sky came to me and said, 'Would you be interested in being involved with this?' and I said, 'Only if this is a completely and utterly supportive celebration of William and Kate'. I'm a tour guide of the places to go and what to wear and how you should behave if you want to perhaps catch the eye of a titled man, but ultimately it's a moral tale. We say constantly - Kate's got a brain, she went to university, she's an individual, very modern woman. It's not a cynical look at all, it's a celebration."
You mentioned you'll be out of the country for the wedding, but you will be watching?
"Of course. I'm going away but I will be glued to it, of course. I think even if you're on the moon you'll be able to see this wedding. They're everywhere, aren't they? I can't wait to see the dress Kate's wearing. I hope it's Sarah Burton, I hope she's wearing [Alexander] McQueen. McQueen or Stella McCartney."
"I don't know - I'm a romantic so I kind of just think it's wonderful that they found each other and they seem so happy. I loved Diana. I think the princes are gorgeous. I'm a royalist - I like the Royal Family. I've met the Queen, I've met Charles and Camilla, and I've met William and Harry. So I'm just really happy for them, genuinely happy. Everybody loves a love story and we all like happy endings."
Some people have said it's like a fairytale.
"It is, but as much as he's chosen her, I think she's chosen him, which is what's so great about it. This is quite a unique wedding, that the heir to the throne has chosen the woman he wants to marry. It's not, 'Oh great, you've got to marry the daughter of blah blah blah'. This isn't my fantasy. My fantasy and fairytale when I was a little girl was to be in an MGM musical. But there will be hundreds of thousands of girls out there who will watch this wedding and will be completely and utterly swept up in it and saying, 'I want to know how Kate did it'. Kate is a unique woman, but the show is, 'Let's take a look at some tips we can give you'."
Alright, so if I wanted to marry a prince, what tips would you give me?
"My first would be get a great education. Be athletic. Be genuinely interested in polo, shooting parties. I think it's a very wholesome life that they live. Yes, they like to go to Boujis, but what young couple doesn't go out dancing? I honestly think [you should] have a good head on your shoulders, have some drive, personal ambition, and be supportive. But I'm not giving advice on marriage - I'm the tour guide through the show."
You spoke to lots of experts - was there anything where you thought, 'I'd never do that', or really bad advice?
"The thing is, I really wasn't looking at it from a personal point of view. I think initially the producers were really hopeful that it would be me wanting to find out [tips] for me, and I was like, 'No!' But I do believe that there are girls out there who are going to be like, 'Oh my goodness, Harry's so cute, what princes are left?' I remember Diana and Charles's wedding. I remember the street party and thinking for ten minutes, 'Ooh, Andrew looks so dashing'. All the people we met - we spent the day at this place called Belvoir Castle. We spent the day with the Duchess of Rutland and her children. We had the most incredible day. They're proper aristocrats, the real deal, but just so lovely, so authentic, so interesting. They weren't some crazy titled family. I found them fascinating and fell in love with all of them."
What else did you get up to on the show?
"I went to castles, I've been filming in Chelsea. We had the most gorgeous day in Selfridges, in the personal shopping department, which is like something out of a Hollywood movie. It's so glamorous. One of the guys who runs personal shopping lent me all these jewels for the day. I had two security guards following me all day because of these diamonds that Selfridges had lent me, and clothes. It was just absolute heaven. So that was a very fun day. And there was lots of filming in Chelsea and cake shops and things like that."
Do you think there are any downsides to that lifestyle?
"It's got to be hard. The whole world is watching you. But I think from what I can see Kate seems to have such a good head on her shoulders, she seems to come from a really tight family, and I think she's going to do brilliantly. They seem like they're meant to be. They've been together for eight years, they know each other. It's a long time."
Why should people watch How To Nab A Prince?
"It's high end, glossy, Grazia stroke Hello!. They've shot it beautifully, it's vibrant and bright and fast-paced and it's an upbeat, fun look at the world of titled people. It's a bit of fun!"
How To Nab A Prince continues tonight at 8pm on Sky Living.