HD Ratings: Grand Designs a House Divided

Grand Designs NZ was a house divided on Tuesday, when it won with 25-54 year-olds but lost the 18-49 race to Celebrity Treasure Island.

Episode three of the TVNZ 1 series averaged 4.5% of 25-54s, which was up half-a-point on the previous week, vs 3.9% for the penultimate episode of TVNZ 2’s CTI (which slipped by almost the same margin).

Designs’ 18-49 average of 2.7% was slightly down week-on-week while CTI’s was up four-tenths of a point to 3.0% on the eve of tonight’s season final.

Three’s Lego Masters averaged 1.3% of 18-49s, which was down sharply on the previous week’s 2.1%; the 25-54 average also fell, from 2.9% to 2.1%.

Designs’ lead-out Documentary NZ: Web of Chaos won its slot in both key demos (2.6% of 25-54s, 1.6% of 18-49s), which set up Coronation Street to narrowly win at 9.30 (0.8%/0.6%).

TVNZ 2’s Hunted Australia averaged 2.2%/1.6% ahead of Australian Survivor’s 1.0%/0.6% and against 1.2%/0.8% for Three’s Emergency.

Prime’s The First Lady and The Flight Attendant each averaged 0.0%, Eden’s Undercover Billionaire 0.2%/0.0% and Duke’s movie The Fugitive a sprightly 0.6%/0.4%.

The dominance of TVNZ 1’s evening line-up delivered peak demo shares of 28+ while TVNZ 2 led Three in both demos.

Note: These overnight ratings exclude viewership of the networks’ +1 SD channels.