TVNZ's commitments to programme rights jumped to $387.8 million as at Dec. 31 from $233.9 million at the end of June and $247.8 million a year earlier.
Broadcasters have been fighting more aggressively for premium content with the emergence of online video streaming services such as Netflix and Spark New Zealand's Lightbox, while at the same time contending with a weaker kiwi dollar pushing up the cost of purchasing foreign programmes.
TVNZ's year-on-year decline in profit is primarily due to increased online competition from global players and the one-off sale of some assets last year.
"Although market demand for television advertising softened slightly over the last six months, continued strong audience delivery has enabled TVNZ to maintain a leading share of TV advertising revenue for the period," chief executive Kevin Kenrick said.
"TVNZ's year-on-year decline in profit is primarily due to increased online competition from global players and the one-off sale of some assets last year."