Trina Marr appeared on the Oprah Winfrey Show three times. (George Burns/Harpo Studios)

A former Oprah Winfrey guest who was humiliated and later cheered on the show says she would do it all over again if given the chance.

Trina Marr, a hair stylist who lives in Calgary, says the famous talk show host's farewell is poignant because she experienced the worst moment of her life on Oprah's couch.

"All the pain, everything, I would do it all over again," she said. "There's nothing in the world I wouldn't do to ensure that I would meet the husband I have now."

"It is a success story, not that it didn't come without a lot of tears and sadness."

Six years ago, Marr and her former husband appeared on the show because she'd gained weight.

"He admitted in front of 25 million people that I no longer looked as good as he wanted me to look any longer and decided to divorce me," she recalled. "Imagine putting your life and your worst life experience on television."

They later returned to the show to confirm their divorce.

Oprah's compliment boosts business

In January, Marr was asked back a third time to show off her new life and a body that was 100 lbs lighter. The love of a man who didn't care about how much she weighed and the support of her friends in roller derby helped her lose weight, she said.


Trina Marr said she has no regrets about her Oprah journey. (CBC)

"It was great to get over the pity party for myself and get back up on the show and show the world that I had conquered my demons," she said.

"And – just to be a little bit petty –  to show my ex-husband 'Hey this is what you could have had. You dumped me in front of all these people, it was humiliating, it was hurtful, not only to myself but to my children. Now look at me.'"

After 25 years on TV, the Oprah show aired its finale on Wednesday. The talk show host is famous for making people cry, making them cheer, and making them money. Oprah did all three for Marr.

The blonde hair stylist wore her product, called Hair Flairs, on air in the January show and Oprah admired it.

"Thanks to Oprah mentioning my hair product on her show my company grew 2,000 per cent in one day," Marr said.

"We really did experience the Oprah touch. Thanks to her the kids will go to university, we won't be laden with debt. We are really grateful."