Broadcasting Minister Craig Foss says the smooth transition to digital television in the South Island bodes well for the rest of the country later this year.
The analogue signal was first turned in Hawke's Bay and the West Coast in September 2012, and in the rest of the South Island at the end of April this year.
Research by the Going Digital group found 99% of South Island households have access to digital television.
Mr Foss says achieving such a wide take-up of digital is a major milestone for the project to turn off the analogue signal nationwide.
The analogue signal will be turned off in the lower North Island, Taranaki and East Coast on 29 September and in the upper North Island on 1 December.