Dana has said "it was both lovely and sad" watching back the RTÉ show, which marked 50 years since her Eurovision win.
"Dana – The Original Derry Girl" aired in May 2020 and recounted growing up in The Troubles, her family life and relationships and her success in music. But, for Dana, is was tough because it was the first time she opened up so publicly about a hard period of her life.
She also opens up about life on the road, her relationship with her father and growing up in Derry.
Read more: Phil Coulter on life in music, the inspiration behind Ireland's Call and his incredible legacy
Dana told RSVP Country: "It was both lovely and sad. It was the first time I had shared about a really difficult period I had gone through.
"I am still going through it. If you don’t talk about it or you don’t bring it to your mind you can go on and do what you have to do.
"That is part of your training as a performer. No matter how you’re feeling, you have to have bright, positive thoughts to do your work.
"You go out and perform no matter what. When you have to sit down and talk about it, it’s like opening a wound.
"I found it very hard to record it and I found it doubly hard to watch it. I’ve only watched it once. I can’t watch it again.
"On the other hand, I loved the memories and some of the things I did like the BBC series and the artists I worked with."
For Dana, it was hard being away from her family and being away from Derry while pursuing a career in music.
The Eurovision legend said: "It was very hard, but at least my father was with me. I missed my friends, we used to all meet in the local coffee shop for chocolate cake and a soft drink on a Saturday.
"We used to make it last an hour so we could talk and see who was around before we got thrown out [laughs]. Those people are still my friends today."
Has she any regrets in life? "I wish I was able to enjoy Eurovision more at the time. I was constantly tired and anxious."
Dana's highlights from her long-standing career are playing the biggest stages in music.
She said: "I went from playing in small folk clubs and local hotels to playing The Palladium in London and Batley Variety Club. When I played Batley Variety Club, I went in after Louis Armstrong and Shirley Bassey the week before.
"People used to clap and shout for me when I left the stage and I remember thinking that they were feeling sorry for me because I was absolutely rubbish.
"I had a very low opinion of myself. I wish I enjoyed those moments there."
Dana grew up surrounded by music in her household.
She said: "Derry is a very musical city, so our house was always full of musicians. My father was a trumpet player and we all studied music and played instruments.
"Music felt very natural to me and our house wasn’t unlike other households I knew. There was a tradition of brass bands in the area, so the young boys got great training in reading and playing music.
"There was such a dire situation with employment at the time. There was always a high level of unemployment. People supplemented their income by playing in a dance band."
Music was very big in Derry.
She said: "I studied classical piano, that was my main instrument, not my voice. You might remember Fr Daly, as he was, he then became Bishop Daly.
"He was the priest giving the last rites to a boy who had been shot on the street in that very famous photo. He was waving a blood stained hanky.
"He was one of the parish priests in Derry and he used to put on celebrity concerts, pantos and talent competitions. I entered a competition with him, but the girl fell ill.
"I went up to Fr Daly to get my pound back, because that was a fortune. He knew I played guitar so he convinced me to enter the folk section.
"I think he actually just didn’t want to give me the pound back [laughs]. I came in second place and I entered another one where I won.
"The prize was that I got to record with the distributing company for Decca Records. There was a lot of talent in Ireland, but they never got a foot in the door in the big companies in England."
Music was something that connected the community during The Troubles.
Dana said: "Very much so. The communities were really mixed.
"You would have had catholics and protestants playing music alongside each other. We all grew up together and it was a mixed community. My own family was mixed religion wise."
Dana enjoys being on TV these days.
She said: "I was on Beat The Chasers on ITV and I won £10,000 for a charity in Derry. They’ve now saved hundreds of lives of people who are in very vulnerable situations.
"I also did Mastermind, but I made a total fool of myself [laughs]. There aren’t many music shows now. I’ve been invited to go to New York next month for a Celtic heritage concert in St. Patrick’s Cathedral."
Read the full interview with Dana and see all the gorgeous pictures in this issue of RSVP Country - on shelves now
Get the latest country music news, interviews and pictures straight to your phone by joining our exclusive Facebook page - here
