Newstalk ZB carries one of the longest lineages in New Zealand broadcasting. Its history traces back to 1926, when Auckland's 1ZB first went on air, one of four regional ZB stations set up in the country's main centres alongside 2ZB Wellington, 3ZB Christchurch, and 4ZB Dunedin, according to the station's history on Wikipedia. For decades those four stations ran a mix of local and networked music programming, a format that held until 1987, when 1ZB was relaunched specifically as a talk station under the Newstalk 1ZB name, setting the template for what the network is today.
Ownership of the network has shifted over the years as New Zealand's media industry consolidated. Radio New Zealand sold its commercial operations, Newstalk ZB included, in 1996, and the station eventually became part of NZME, formed in September 2014 through the merger of APN New Zealand, The Radio Network, and other media assets. NZME still operates Newstalk ZB today as the flagship of its talk radio portfolio, alongside music brands like Classic Hits and ZM.
A lineup built around a handful of national names
The modern schedule leans heavily on personality driven programming. The on-air schedule runs the Mike Hosking Breakfast from 6am to 9am on weekdays, followed later in the day by the Heather du Plessis-Allan Drive show from 4pm to 7pm, with other regular voices including Ryan Bridge, Kerre Woodham, Matt Heath, and Tyler Adams filling out the rest of the day. That mix of opinion, interviews, and news coverage across politics, business, and everyday life is what has kept the network positioned as one of the country's most listened to talk stations, nearly a century after its Auckland predecessor first signed on.
Few stations anywhere carry a direct line back to 1920s broadcasting the way Newstalk ZB does. What began as a single Auckland frequency playing music has become a nationwide talk network, still recognizably descended from that original 1ZB call sign even after a full format change, a corporate sale, and a merger that reshaped New Zealand commercial radio.