Maori Television is increasing its broadcast hours to focus on language revitalisation and scrapping infomercials in the process - a move which has been praised by a language critic.
From Sunday, the station will broadcast tuition programmes from 10am to 3pm, replacing infomercials which brought in about $250,000a year.
Chief executive Jim Mather said the extra five hours a day would turn the broadcaster into the biggest virtual classroom in the country.
The development came after research found that 85 per cent of viewers were not fluent Maori speakers.
"We need to be programming accordingly. We want to ensure that we're constantly innovating to strengthen our Maori acquisition outcomes because at the end of the day we're primarily a language revitalisation organisation.