"Not only did it win its slot both nights so far, last night saw fantastic growth. [It] has also been a hit online, with huge numbers viewing via TVNZ On Demand."
The BBC series attracted up to 10 million viewers per episode in the UK when it aired in September.
TVNZ hoped to pull a bigger Kiwi audience by using a new binge-watching format which sees the show occupy a one hour chunk for five consecutive nights.
"Binge viewing is obviously a bit of a phenomenon at the moment," Peterson told The Herald on Sunday before Doctor Foster went to air.
"It doesn't work with everything but Doctor Foster is the perfect programme to watch night after night. When we first saw it we just couldn't wait for the next episode, and then the next, so we wanted to give our audience the chance to unravel the truth alongside Gemma Foster as quickly as possible, too."
It's not just the ratings that prove it was the bait needed to hook viewers, many have taken to TV One's Facebook page to share their excitement about the gripping show.
Gemma Foster, the star of TV One's new five episode show Doctor Foster is proving popular with viewers.
"Gosh I'm loving this series TV One, I don't know how she does it, much stronger woman then me..... can't wait to see what she does tomorrow night," Sara Leigh wrote.
"First episode, DONE! and already I am in love with it. MORE, I need moooore," Sharnylee McCormack said.
Some even commented on the new format being a huge plus.