TVNZ chief executive Kevin Kenrick says a $10 million increase in profit is due to a 1 per cent increase in its share of the television advertising market.
The market was down, but TVNZ picked up a greater share of it.
Net profit after tax of $28.1 million for the year ending June 2015.
The profit increase reflects that TVNZ last year recorded a $6.4 million impairment on the value of its pay TV venture Igloo, and for other plant and equipment. TVNZ sold its shares in Igloo to its joint venture partner, Sky TV.
Kenrick said he was pleased with the growth during a period of softer demand for TV advertising.