Charting the freeze and thaw which transforms Antarctica each year, this NHNZ documentary follows an icebreaker as it manoeuvres towards the permanent polar ice cap — the furthest south any ship has yet ventured in winter. The cold has trapped icebergs in frozen seas, as well as 25,000 male emperor penguins, waiting out the three month polar night. Veteran Antarctic filmmaker Mike Single showcases eerie undersea environments, icebergs in beautiful decay, the towering Ross Ice Shelf, seals and a massive summer explosion of krill. Single won an Emmy award for his footage.

Though it plays hell with cameras, Antarctica has long fascinated filmmakers. This hour-long National Film Unit documentary was assembled from a five-part TV series of the same name. There are looks at scientific research, early explorers, and Antarctica's affect on global climate. Made four decades ago, the programme warns of a possible "new and potentially dangerous warming period", and calls the greenhouse effect a "controversial scientific theory". The large cast includes penguins, a seal birth (clip two) and a heavyweight team of Kiwi scientists.

This documentary heads to the Southern Ocean to explore New Zealand’s subantarctic islands. The Antipodes, Bounty, Snares, Campbell and Auckland Island groups are remote outposts between Aotearoa and Antarctica, home to vital breeding grounds for millions of seabirds and marine mammals – from penguins to sea lions and albatrosses – plus unique plants like giant tree daisies. Director Conon Fraser also looks at human efforts to live there from whaling depots, to the short-lived Hardwick Settlement. The hour-long NFU film is narrated by Ray Henwood (TV's Gliding On).

Naturalist Ramari Stewart never tires of the view from a subantarctic hut. "This is the only place I know where I can see a whale out my window and it’s never let me down." The documentary follows Stewart as she spends a summer and winter monitoring wildlife at remote Northwest Bay in Campbell Island. Southern right whales, Hooker's sea lions and elephant seals all feature. Stewart, who later became a whale expert, displays a jaw-dropping bond with the animals. At the end of the programme, the whales cause a stir when they play perilously close to Stewart's boat.

The first episode of Ice Worlds explores animal life at the poles, both North and South. At the North Pole American scientist Steve Amstrup tracks polar bears, from their hibernation during winter, to seeking food out on the tundra during summer. Down south, Antarctica's emperor penguins are studied by Gerald Kooyman, physiologist Arthur Devries catches Antarctic cod, and biologist Brent Sinclair seeks the continent's largest land animal — a tiny insect called a springtail. Ice Worlds was narrated by former news anchor Dougal Stevenson.

Rosemary (Annie Whittle) is a photographer, mother and middle-distance runner. A project photographing the rare yellow-eyed penguin sends her to a remote Otago cottage. Despite menacing happenings, she refuses to be intimidated. Then events escalate, sending her running for help in the race of her life. Bird-watching, stranger danger and feminist film theory line up for a time trial in Melanie Read's first movie, for which 20 of the 29-strong production crew were women. Marathon champ Allison Roe — who trained Whittle off-screen — makes a brief cameo.

In this 1956 reel, Sir Edmund Hillary and colleagues describe their mission to set up bases in advance of the Commonwealth Trans-Antarctic Expedition. Ed meets Everest mate George Lowe in Uruguay to board The Theron, and they smash and use explosives to blast their way through ice, then unload supplies (including the soon-to-be-famous Ferguson tractors). Sections of the footage were shot on 16mm film by Hillary himself. Lt Commander Bill Smith and Dr Trevor Hatherton narrate pathfinding with sledges in McMurdo Sound, on the other side of the continent.

To create award-winning A Year on Ice Antarctic photographer Anthony Powell spent 10 years (and nine winters) clocking the continent on camera: from the 24-hour darkness of winter to desolate, stunning polar vistas (blazing aurora, freezing ice storms) and the creatures and humans who are based there. Time-lapse imagery — Powell’s speciality — evokes the ever-changing patterns of polar life. Powell’s images have screened on National Geographic, Discovery and in BBC’s Frozen Planet. A Year on Ice has inspired awe and acclaim at film festivals worldwide.

When TV began in New Zealand in 1960, posh English accents on screen were de rigueur. As veteran broadcaster Judy Callingham recalls in this sixth episode of Kiwi TV history: "every trace of a New Zealand vowel was knocked out of you." But as ties to Mother England weakened, Kiwis began to feel proud of their identity and culture. John Clarke invented farming comedy legend Fred Dagg, while Karyn Hay showed a Kiwi accent could be cool on Radio with Pictures. Sam Neill and director Geoff Murphy add their  thoughts on the changing ways that Kiwis saw themselves.

This award-winning documentary from NHNZ reveals new information about the origins of the iconic kiwi. Presenter Peter Elliott travels the country investigating how "evolutionary mutants" — like giant meat-eating snails, kiwi, and tuatara — evolved over 20 million years in the face of massive tectonic upheavals and extreme isolation.  Elliott answers why Aotearoa has the "weirdest creatures", such as birds that don't fly and mammals that do. Company Weta Workshop used computer graphics to create images of extinct creatures for this TV One documentary.