Canada

A lot of the more popular ones have been listed already but here's a couple that I loved that are a bit more off the beaten path:

Tv:

• Little Bird - drama, if you want to cry your eyes out and watch a fantastic story about the consequences of the 60s scoop
• Late Bloomer - comedy by YouTuber Jasmeet Dutta

Music (indigenous):

• snotty nose Rez kids - rap/hiphop
• anachnid - electronic, I guess?

Nonindigenous:

• kimmortal - alt hiphop
• shad - alt hiphop
• mother mother - indie rock
• said the whale - indie rock
• the Jerry cans - folk (Inuktitut language and style)

Podcast:

• Stolen - true crime

Adding video games too:

• Don't starve (and any Klei game actually)
• crypt of the necrodancer
• starbound (s/o even though I think they're UK based not Canadian)

Schitt's Creek and Kim's Convenience.

Very much Letterkenny and Shoresy.

As someone who grew up in South Canada (US PNW), The Red Green Show will always be special to me.

My favourite Canadian shows

• Kids In The Hall
• Red Green Show
• Loading Ready Run

Trailer park boys, letterkenny, shoresy

The house hippo

Podcasts:

• Canadaland
• Commons
• Canadian True Crime
• Someone Knows Something
• Uncover

Tv Shows:

• Schitt's Creek
• Orphan Black
• Son of a Critch

Corner Gas! (Not the cartoon)

North of North is great too.

• Orphan Black - spectacular SciFi
• Travelers - SciFi, Can/US mixed

Trailer Park Boys!

ReBoot and Beast Wars

Captain Star and Undergrads

Clone High and Hilarious House of Frightenstein

Mudoch Mysteries and Wayne and Schuster

Paw Patrol and Mecha Builders

Kids in the Hall and Rare Earth

Johnny Strides and Jim Carrey

Austin Powers and Michael Ironside

Sharon, Lois and Bram

Great Big Sea and Scott Pilgrim

Sue Johannson and Under the Umbrella Tree

Telephone and Basketball

No particular order

Dated and off the wall - Kids In The Hall (1988-1995) ... (with probably the most awesome intro song ever)

Even more dated and off the wall - SCTV (1976-1984)

If you want continuous music streaming (that is, it's not on-demand, and you'll listen to whatever's playing), Stingray Music (formerly Galaxie) gets the job done.

I also use CBC Listen, primarily to stream their radio stations, but they've got loads of podcasts and music playlists as well.

I'm old(er), and living near the border allowed for access to some great children's programming back in the day.
Mr Dressup and Friendly Giant in particular. (side note, if you have access, check out the excellent documentary about Mr Dressup on Prime).

As for music, again, being near the border, with one of the best alternative radio stations in the 90s (89-X), I was turned on to many excellent artists. To name a few....
24 Gone
The Tragically Hip
The Pursuit of Happiness
Bootsauce
Odds
Amanda Marshall
Moist
The Grapes of Wrath
and so many more. Most of these bands could still easily edge out anything new on the radio today.

Kdramas. They have exceptional series ranging from fantasy to thrillers, scifi and almost anything you can imagine.

They are not canadian I know, but since you said international minus magastan...

Gary and his Demons

19-2 was criminally underrated

Wiretap with Jonathon Goldstein.

What was that hideous but hilarious stuff where they had upside down mouths talking, a canadian series/tv thing from around 2010, it looked like this sort of, it will forever live rent free in my mind:

https://archive.org/details/can-film-archive/

If you're into horror I liked The Void a lot.