Radio New Zealand says there may be cuts in programming because of a funding freeze.
The State broadcaster appeared before Parliament's Commerce Committee on Thursday for a financial review.
Chairman Richard Griffin said the organisation, which has had no extra funding since 2008, can still live with a shrinking budget because staff have been very disciplined.
Asked what impact inflation and no extra funding over the next three years would have, the chief executive Peter Cavanagh said the range and quality of programming would remain.
But he said there could be cuts in quantity; particularly of programmes which cost a lot to produce, such as some documentaries, features and radio dramas.