A Fine Gael TD says RTÉ has questions to answer, after two 2FM presenters apologised for offensive content posted to their social media accounts.
'The 2 Johnnies' say the content should "never have been published" and they will "aim to do better in the future".
The video, which contained several crude references and featured quotes from a series of vulgar car stickers sent in by listeners, has since been deleted.
The comedians and podcasters have been suspended by RTÉ, pending a review into the promotional video for their show.
The pair only began hosting the radio show on Monday.
In a statement, John O'Brien and John McMahon add: "We are not perfect and we are learning all the time."
While RTÉ says: "RTÉ believes in dignity and respect and does not tolerate material or attitudes of this nature.
"The 2 Johnnies will not be on air today while we review the matter."
Fine Gael's spokesperson on equality, Jennifer Carroll-MacNeill, told The Hard Shoulder the State broadcaster needs to clarify what it knew and when.
"I saw that video yesterday and I know it was taken down and deleted, but RTÉ knew about that.
"RTÉ were well aware of it, they were aware that the video had been taken down and they still went on air yesterday.
"Today, once the story was published, they've been taken off air pending a review.
"I think the biggest question is for RTÉ, because RTÉ are one of the people - like yourselves - who facilitated discussions around violence against women.
"They had me and other people like me in, talking about the changes that needed to be made".
She adds: "There's a very important question for RTÉ about the sequence of events, and about what their response was to the queries that were made by journalists and when they made a decision to take this off-air".
'Don't want people to get all Helen Lovejoy'
Deputy MacNeill says freedom of expression goes both ways.
"When I saw the comments.... it's just so disappointing considering we're having a national conversation about violence against women at the moment - and calling out all of the micro-aggressions.
"And instead of doing that, they took the content and promoted it and used it for fun.
"Of course there's freedom of expression in comedy, but I also have freedom of expression.
"And my opinion is that's exactly the sort of content that we're trying to get away from.
"It's demeaning, it's toxic and we depend actually on popular guys to call it out and to try to help".
She says she understands some people will push back that it is only a joke.
"It's not as though people want to get all Helen Lovejoy about everything - that's not it.
"But this is exactly what we talked about last month, about changing a culture around violence to women".
