On April 24 1982, some 300 million people from 30 countries watched the Eurovision Song Contest in Harrogate.

It remains perhaps the biggest occasion in the town's history but strangely, you'll struggle to find any evidence today that it ever took place.

There's no plaque, no museum exhibition, no statue. Visitors think you're winding them up when you point to Harrogate Convention Centre and say it hosted the event associated with Abba, Lulu, Terry Wogan and the dreaded 'nul points'.

But it happened and as the 40th anniversary looms, we have compiled a two-part feature based on the memories of three people who were closely involved on the day, starting today with BBC presenter Jan Leeming.

At Eurovision, whichever country wins gets to host the event the following year so Bucks Fizz's dress-tearing routine in 1981 triggered a search to find a venue. It would be the fifth time the UK had hosted the event. Three of the previous occasions were in London and one — famously in 1974 when Abba won — in Brighton. Since 1982, the UK has only won Eurovision in 1997.

Tomorrow's article will look in more detail about why Harrogate was chosen.

But the decision to select a small, relatively unknown town prompted the BBC to begin its more than two-hour live broadcast, which can be viewed here, with a five-minute sequence enlightening viewers to the joys of places like the Stray and the Drum and Monkey.

The phrase 'Where is Harrogate?' was emblazoned across the screen in each of the languages of the countries taking part and was followed by a montage of scenes depicting Harrogate as some kind of middle England utopia full of beautiful people, elegant shops and idyllic countryside.

The sequence ended with smiling couples stepping out of limousines at the convention centre on the night of the big event to see if the British pop duo Bardo could win. They couldn't, eventually fading to seventh behind Nicole, whose song A Little Peace became West Germany's first ever success. Here are the memories from the woman who held the night together.

Jan Leeming: 'I was thrilled, flattered — and very worried!'

I think I arrived in Harrogate a day, maybe two, in advance. There was only one proper rehearsal so we didn’t have much time. When I wasn’t working I was mainly ensconced in a hotel — I can’t remember which one — but I did get a flavour of Harrogate because they took all the contestants around town to do some filming. My best and oldest friend lives in Leeds and I have been to Harrogate with her several times since. It’s a really beautiful town.

Eurovision was the kind of thing the BBC did very well in those days. It was a huge production, with Michael Hurll as overall director. There were 18 countries taking part and 30 countries watching. Every country took their feed from the BBC and had people working on booths at the convention centre. Terry Wogan was working in one of the booths but our paths didn’t cross.

All 18 countries' songs were accompanied by the BBC Radio Orchestra. The orchestra was led by Ronnie Hazlehurst but each country brought out their own conductor for their performance.

It was the only time the BBC ever paid for my wardrobe. I had to pay for the clothes I wore when I was reading the news and when I was representing the BBC at evening events. One of my favourite designers was Gina Fratini and I thought it was a wonderful opportunity to wear one of her dresses but the BBC said it would have been too much like an advert for her and I could have a dress made in-house instead. It was a very nice dress but not one I would have chosen, so it was a bit of a sore point. I wouldn’t have minded if the BBC had always paid for my clothes!

I was paid £1,000 to present Eurovision. My salary when I went from radio to TV was £10,500 and then it gradually increased over several years. In 1982 I was earning about £13,000. So to be paid about £1,000 to present Eurovision was fantastic. In those days men were paid far more than women and we had to put up with it. As one person told me when I remonstrated — “if you don’t like it, Miss Leeming, there’s the door”.

My nerves were awful when I walked out at the start of the show. I do remember writing in my diary that I would have given anything for a train ticket home. Most actors and presenters tell you nerves never leave you and frankly, they’re what enhance your performance.

It turned out to be a wonderful occasion. I don’t remember much about the show but I remember the party afterwards because the Spanish guitarist asked me to dance. He tossed me around the floor and then wrote on my invitation to the party ‘mi casa, su casa’ (my house is your house) — and I never saw him again! I kept that invitation until a few years ago.

There was a business in Harrogate called Silvio’s and it sent me the most beautiful cake, which obviously was shared out amongst the crew. But I didn’t stay long afterwards. I had a husband and a son to get home to.

The UK didn’t host Eurovision again for years because we didn’t win it again until 1997 and the winners got to host it the following year. Then in 2003 we got 'nul points'.

I wouldn’t have chosen the winning song. I was very surprised that it won. It was called A Little Peace and it was sung by a German girl called Nicole who went on to have a long career, in fact I think she’s still going. But there was more variety and individuality to the songs then. They all seem to be written to the same format now. Everybody copies everyone else. But perhaps I’m only saying that because I’m an old lady now!

The BBC gave me the Eurovision dress and I kept it for years, waiting to find it an appropriate home. Eventually I gave it to Celebrity Cash in the Attic to be sold by auction in 2014 because I wanted to promote the male testicular cancer charity Orchid. It was auctioned in Chiswick and went for £250.

Prior to 1982 the UK had won Eurovision five times. Since 1982 we have only won it once. Terry Wogan sort of made fun of it and I don’t think the English take it seriously enough. Sweden apparently runs six weeks of heats. Terry called it the Euro Yawn or the Euro Bore but back then it was watched by over 300m people. I looked up what it gets these days and now with all the hype it only gets 100m.

Mind you there wasn’t that much telly around back then. Now you have 360 channels and nothing to watch. Everything was a bit different in the 1980s. It was before the cult of celebrity and social media. I don’t seem to recall it having all the razzmatazz of Eurovisions today.

Eurovision wasn’t quite the pinnacle of my career: the pinnacle was a documentary I made after five years of research into a free French pilot called Rene Mouchotte whose name is on the Battle of Britain memorial. You can watch it here. That was the biggest achievement of my career. But Eurovision was very near the pinnacle. It was an absolute honour and privilege to present it.

Jan Leeming's new podcast Addicted to Love is now available on Spotify, iTunes etc. Further information is available here or on Twitter @Jan_Leeming.