25 Years was a three and a half hour television special that began at 7:30pm, June 1, 1985 on Television New Zealand's TV ONE channel. The special was held to celebrate the 25th anniversary of television in New Zealand and was hosted by a variety of well known New Zealand celebrities, both past and present. The special was memorable for the return to TV of three New Zealand television icons - Ginette McDonald and the return of the cast of South Pacific Television's highly successful comedy series A Week Of It starring lead comedians David McPhail and Jon Gadsby. At the time 25 Years was the first programme to be given a 3hr time slot, although eventually it ran overtime to three and a half hours.