Miriam O'Callaghan has spoken about the RTE Investigates programme that delved into practices at the Hyde and Seek creches and said it made for very tough viewing.
She commended her colleagues for putting together such a thorough piece of investigative work with Creches - Behind Closed Doors, which has sparked a huge reaction.
"Sure I work with all the people who made that programme," she said.
"It was a superb programme. It's very disturbing when you hear and see the babies crying. It's just brilliant work.
"That takes a lot of hard work but I think that's when programmes really matter. It's when you realise journalism really matters. It's superb. As a mother, I think everyone just felt, 'That could have been my baby crying'."
She said it highlighted a very important issue and that people will be much more careful about how they run their creches.
"They put a lot of work into it and it showed, and the Irish people reacted in huge numbers. That shows the importance of the work," she said.
Meanwhile, Miriam has been filling in this week on Sean O'Rourke's RTE Radio One morning show and said that she's "really happy" doing what she's doing.
"I don't really plan my career. I laugh at people who say, 'I'm going to do this and then I'm going to do that'," she said.
"I just love what I do. I actually think making a five-year plan is a bad idea."
Miriam said that she prefers filling in on the radio than fronting her summer chat show on Saturday nights.
"Instead of doing a one-night-a-week chat show, I'm doing five days a week radio and actually, if I'm honest, I prefer it because I've already been able to go to Portugal for two weeks.
"Actually running a chat show, it's hard to get guests, even on the Late Late," she added.