The range of New Zealand shows available isn't huge and includes only a couple of releases from before the 1990s. With rise of streaming services it would be a brave person indeed to predict many more shows will get a physical format release unless the market for local tv shows skews nostalgic older folk who love a murder mystery but can't get the hang of streaming services, though I haven't found a whole lot of older shows on local ondemand services either.

I've partnered with Kiwi online store Might Ape; if they stock a Kiwi Tv show I try and link to it there, and if you follow one of my links to their site and end up buying something I get a micropayment to help pay the webhosting bills for this site.

Title
800 Words (2015-2019)
A Night At The Classic (2010)
A Personal War (2011)
A Tall Long Faced Tale (2008)
Adventurer (1986)
Adventures of Massey Ferguson (?)
Adventures of the Black Stallion (1990-93)
Aftershock (2009)
Almighty Johnsons, the (2011-13)
Amazing Extraordinary Friends (2006 - 2010)
An Angel at My Table (1991)
An Island Calling (2008)
Annabel Langbein: The Free Range Cook (2014-2017)
Ans Westra: Private Journeys/Public Signpost (2006)
Art Star and the Sudanese Twins, the (2009)
Back of the Y Masterpiece Television (2001-2)
Bad Seed, The (2019)
Being Eve (2001-2003)
Billy (2011)
Billy T James Show (1981-88)
Billy T James Show (1990)
Black Grace: From Cannon's Creek to Jacob's Pillow (2005)
Blakey (2011)
Blerta (1976)
Bliss - The Beginning of Katherine Mansfield (2011)
Bloodlines (2010)
Blue Rose (2013)
Bread and Roses (1993)
Bro'Town (2005-)
Brokenwood Mysteries, the (2014-
Brother Number One (2011)
Bungay On Crime (1995)
Burying Brian (2008)
Buzz and Poppy (1998)
Buzzy Bee And Friends (2009)
Captain's Log (2001-2)
Cave In (2003)
Chasing the Ghost
Chef on a Mission (2010ish )
Children of Fire Mountain (1979)
Children of the Dog Star (1984)
CKC: Cool Kids Cook (2007)
Clare (?)
Cleopatra 2525 (2020-21)
Coast New Zealand (2015-2017)
Coasters (2013)
Colin McCahon - I AM (?)
Country Calendar (1966-Now)
Cover Story (1995-96)
Cuckoo Land (1986)
Cult, The (2009)
CUZ FM (1989-90)
Dark Knight (2000)
Dead Lands, the (2020)
Diplomatic Immunity (2009)
Doves of War (2006 )
Duggan (1997-99)
Emile Richards (2012)
Ends of the Earth (2007)
Enid Blyton Adventure Series (1996)
Enid Blyton Secret Series (1998)
Facelift (2004-2008)
Flight of the Albatross (1995)
Flight of the Conchords (2007-09
Forgotten Silver (1995)
Funny Business (1987-89)
Get Fresh (2010)
Getting Your Body Back (2006)
Giggles, The (2009)
Girl vs Boy (2012)
Global Radar (2011)
Go Girls (2009-13)
Go Show, The (?)
Gold (1991)
Golden (2011)
Grand Designs NZ (2015 - now)
Grasscutter, the (1988)
Gulf, The (2020-now)
Hairy Maclary (1996)
Harry (2013)
Haunting of Barney Palmer, The (1987)
Heart of the High Country (1986)
Heartland (1992 - 96)
Hercules: The Legendary Journeys (1995 - 99)
Here to Stay (2007 - ?)
Hillary: Everest and Beyond (2015)
Holly's Heroes (2005)
Horse of the Year (2009 - 2018?)
Hothouse, The (2007 - )
Hounds (2012)
How the other half lives (2009)
How to Murder Your Wife (2015)
Hunger for the Wild (2006)
Hunter's Gold (1976)
Ice (2007)
Ice (2011)
Ihaka: Blunt Instrument (2000)
Insiders Guide to Happiness (2004)
Insiders Guide to Love (2005)
Intrepid Journeys (2005)
Investigator, the (2008)
ITM Fishing Show, The (2009 - ?)
Jack of All Trades (2001-2002)
Jaquie Brown Diaries, The (2008-09)
Jesus: The Cold Case (2011)
Journey across Latitude 45 South (1985)
Journeys in National Parks (1987)
Kaitangata Twitch (2010)
Keeping Up With the Kaimanawas (2015)
Ken's Hunting and Fishing Show (2007)
Kidnapped (2005)
Killian Curse, the (2006)
Kiwi Kitchen (2006)
Lawless (1999-2001)
Legend of the Seeker (2008-2010)
Let's Get Inventin' (2006)
Line of Fire (2018)
Lion Man, the (2004 - 2008)
Living Room, the (2002-06)
Lost Children, the (2006)
Lost in Libya (2009)
Lost in Wonderland (2009)
Lost World, the (2001)
Lucy (2003)
Luminaries, The (2020)
Maddigan's Quest (2006)
Magical World of Margaret Mahy, the (1994)
Maiden Voyage (2004)
Margaret Mahy's Rumbustifications (2011)
Marlin Bay (1992-94)
Mataku (2002-2005)
Mega disasters (2010)
Michael King - History Man (2004)
Milly, Molly (2008-?)
Mirror Mirror (1995)
Monster of Mangatiti, the (2015)
Monstors Christmas, the (1981)
Moon TV (2002 - 2010)
My Kind of Place (2010)
My Life Is Murder (2019-now)
My Year With Helen (2018)
Mysterious Island (1995)
Nancy Wake: The White Mouse (
Nearly No Christmas (1982)
New Adventures of Black Beauty (1990)
New Zealand on a Plate (2010?)
New Zealand Wars, the (1999)
Nigel Latta (2014)
Nights in the Gardens of Spain (2011) aka Kawa
No Good Calling for Mum (1994)
No Latitude for Error (1994)
North (2011)
Nothing Trivial (2011-2014)
Nuclear Comeback, The (2008)
NZ Detectives (2010-11)
NZ Idol (2004-)
Ocean Zoo (2004)
Off the Radar (2007)
Off the Rails - A Love Story (2005)
One Lane Bridge (2020)
Orange Roughies (2006)
Our Heritage (1981)
Our New Zealand (2003)
Outrageous Fortune (2005-2010)
Piece Of My Heart (2009)
Piha Rescue (2004)
Pirates of the Airwaves (2014)
Politically Incorrect Guide to Grown Ups, the (2011)
Politically Incorrect Guide to Teenagers, the (2011)
Politically Incorrect Parenting Show, the (2011)
Pop-Up: Imagine with Rufus (2010-11)
Power Rangers Megaforce (2013)
Power Rangers Ninja Storm (2003)
Power Rangers Samurai (2011)
Pretender, the (2005-08)
Pulp Sport (2003 - ? )
PURINA Pound Pups To Dog Stars (2014-15)
Puzzle Inc (2005ish)
Racing for Possum (2005)
Radar's Patch (2010)
Radiradirah (2010)
Rage (2011)
Raider of the South Seas (1990)
Ray Bradbury Theatre, The (1991-97)
Real Middle Earth, the (2004)
Rude Awakenings (2007)
Rugged Gold (1994)
Safehouse (2012)
Sam Hunt: Purple Balloon and Other Stories (2011)
Secret Agent Men (2003)
Semisis, the (1998)
Sensing Murder (2006 - 2010)
Seven Periods with Mr Gormsby (2005)
Shackleton's Captain (2012)
Short Poppies (2014)
Shortland Street (1992-Now)
Siege (2012)
Sir Edmund Hillary 1919 - 2008
Sitting, The (2011-2012)
Sound and the Silence, the (1993)
Sounds, the (2020)
South (2009)
Spartacus (2010-2013)
Sports Cafe
Staines Down Drains (2006, 2011)
Step Dave (2014-2015)
Straight Forward (2019)
Strip, the (2002-3)
Super City (2011-2013)
Suzy's World (1999-2003)
Sweet Tooth (2021 - )
Takapu: The Gannet of the South Seas (2003 - ?)
Tankbusters (1970)
Telly Laughs (1996 - 98)
That's Country (1976 - 1983)
This is Not My Life (2010)
Thunderbirds are Go (2015-2020)
Tiger Country (1998)
Tiki Tour (2011-?)
To Sir With Love: A Tribute to Sir Howard Morrison (2008)
Tomb of the Unknown Warrior (2004)
Top of the Lake (2013)
Topless Women Talk About Their Lives (?)
Topp Twins (1997)
Topp Twins and the Apo (2010)
Topp Twins: Topp Country (2014)
Tribe, the (1999-?)
Typhon's People (1993)
Uncharted With Sam Neill (2018)
Under the Mountain (1981)
Under the Vines (2021-)
Underbelly NZ: Land of the Long Green Cloud (2011)
Until Proven Innocent (2008)
Venus and Mars (2015)
Wa$ted (2007-2008)
Wahine Disaster, The (2008)
Wanted (2017)
Welcome to Paradise (2007)
Wellington Paranormal (2018-Now)
Westside (2015-20)
What Lies Beneath (2006)
What Really Happened: Votes For Women (2012)
White Fang (1993)
Wiki The Kiwi (2013)
Wild South (1981-97)
William Shatner's A Twist In The Tale (1998)
Willy Nilly (2001-2003)
Wonderful World of Fred Dagg, the (1975/09/30 - ?)
Worzel Gummidge Down Under (1986-87)
Xena: Warrior Princess (1995-2002)
Young Hercules (1998-99)
Zip and Mac (2008ish)
Zoo, the (1999-?)