"TVNZ has had a remarkable 2021, delivering record profitability, substantial audiences and significant online growth. This is an exciting time for a new leader to join the organisation, and Simon is focused on continuing this positive momentum as we accelerate our digital transformation, building an IP driven future for TVNZ and contributing to the Strong Public Media programme."
Coupe said Power was passionate about the challenges and opportunities the organisation faced.
"With his proven leadership background, understanding of government and track record in delivering fantastic commercial performance, we believe he is the perfect fit to lead Te Reo Tātaki, TVNZ into the future."
Power said he was looking forward to joining TVNZ at a unique point in the broadcaster's history.
"I'm excited to have the opportunity to lead such an iconic organisation. The past year has truly demonstrated the importance a strong national broadcaster has in the daily lives of New Zealanders. I'm looking forward to joining the leadership team as TVNZ continues its digital expansion and moves into an innovative new era."
Power will join TVNZ in March 2022.