TVNZ is planning to shut down youth channel TVNZ U, which failed to become a going concern.
The vacated frequency will be used to screen TV2 programmes an hour after they appear on the main channel.
TVNZ said it had made a commercial decision to take TVNZ U off air at the end of August, after the free-to-air channel had run at a loss for two years.
“Despite our best efforts, we’ve not been able to make it work financially,” TVNZ chief executive Kevin Kenrick said.
“As it is, the channel is a very lean operation and no significant savings can be made to address the shortfall.”
Some valuable expertise had been gained from the TVNZ U operation, particularly in the way live TV and social media were used to connect with audiences.
A consultation process was under way with affected staff.