Norman Learwas arguably television’s biggest groundbreaker during the ’70s.

“What were the odds?”

Harrington recalled with a laugh.

Valerie Bertinelli and Mackenzie Phillips 1978

“But I got it and it ran from 1975 to 1984.

And to be honest, it’s really TV that I’m known for.

And ‘One Day at A Time,’ was the big one.”

Bonnie Franklin in 1980 and in 2012

Phillips' time on the show was turbulent, due to her escalating substance abuse.

In 1980,Peoplereported that Phillips' issues forced her to exit the show.

She eventually returned after she and her father became sober together, temporarily, anyhow.

Pat Harrington on One Day at a Time and in 2013

In 2014, Phillips finally turned her life around after her 11th trip to rehab.

“I’m doing a lot of grunt work,” she said at the time.

“I’m filing papers.

Mackenzie Phillips in 1976 and 1922

I’m scanning charts.

You got to pay your dues before you sit in the big chair.”

“And I’ve loved him my whole life.”

Varlerie Bertinelli in One Day at a Time and in 2023

After starring in a string of made-for-TV movies, she headlined her own sitcom “Sydney.”

She remarried in 2011, ultimately divorcing second husband Tom Vitale.

“I have such wonderful memories from those days,” Bertinelli said.

Glenn Scarpelli in 1980 and in 2022

“I was learning from the best.

Bonnie was like a second mother to me, I absolutely adored her.

And Pat Harrington just made me laugh so hard!

Michael Lembeck in 1979 and 2021

Mackenzie really was like my sister.

It was wonderful to grow up on that set.

I learned so much.”

Boyd Gaines on One Day at a Time and in 2023

One of these was Nick Handris, played by Ron Rifkin.

Alex was written out at the end of season eight when Scarpelli exited to star in a different sitcom.

Interviewed byPop Goes the Culture, Lembeck reminisced about his years on “One Day at a Time.”

Nanette Fabray in One Day at a Time and in 2005

In “Enemy of the People,” Gaines co-starred with his real-life wife Kathleen McNenny.

“You always want to work with people that are better than you,” McNenny told theDaily Mail.

I don’t feel intimidated by it because it’s my husband.'"

Shelley Fabares in One Day at a Time and in 2023

“I just like to work,” he replied.

Fabray died in 2018 at the age of 97.

She was a teen when she was cast in “The Donna Reed Show.”

Richard Masur in One Day at a Time and in 2021

Fabares eventually became a series regular, ultimately appearing in 38 episodes of the series.

The operation was a success, and Fabares made a full recovery.

Masur exited partway through the second season, his character written out of the show.

Mary Louise Wilson in One Day at a Time and in 2016

Masur explained his character’s disappearance in a discussion withThe A.V.

There’s no place to go with this guy.

He’s a loser,'" Masur recalled.

Howard Hesseman in One Day at a Time and in 2018

Masur made a one-time return in the sixth season, but that was it.

In 1995 he was elected president of the SAG-AFTRA union, serving in that capacity until 1999.

Expressing her frustrations to Lear, he agreed to let her out of her contract.

He became Ann Romano’s boyfriend and, quite quickly, her husband.

In 2022, Hesseman died at the age of 81.

“He will be sorely missed and always treasured.”