They say trust will be difficult to rebuild following the payments scandal.
The RTÉ trade union group says it's gravely disturbed by the findings of the Grant Thornton report.
The group says trust has been shattered with RTÉ and it will not be easy to rebuild.
The report shows that on the 'balance of probabilities', RTÉ understated the salary to Ryan Tubridy to keep his payments below €500,000.
It also found a payment of €120,000 euro, which Ryan Tubridy was entitled to as an exit fee for a previous contract, was not made by RTÉ as it had been waived by the presenter.
The Chair of the Public Accounts Committee says many questions still remain unanswered.
Sinn Fein Laois Offaly TD Brian Stanley says there are certain people who need to appear before PAC as soon as possible:
The Chair of the Oireachtas Media Committee is to invite the entire RTÉ board to appear before it.
Committee chair Fianna Fail TD Niamh Smyth says this will allow them to focus on governance and culture at RTÉ.
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