Labour has accused United Future leader Peter Dunne of standing by while public broadcaster TVNZ7 was cut.
TVNZ7 went off air at midnight on Saturday.
Mr Dunne labelled the Government's decision to allow a commercial radio operator to continue to broadcast on a public frequency as the ``ultimate insult'' to those who supported TVNZ7.
But Labour's broadcasting spokeswoman Claire Curran accused Mr Dunne of jumping on the bandwagon too late in the piece.
"Mr Dunne should have flexed his political muscles when he was in a position to save TVNZ7,'' she said.