It's worth mentioning what, at least in my mind, is a peer to the NFB: the Heritage Minutes. Sort of like The More You Know, they were (are?) usually shown in-between children's TV shows.
There's no irony or shame in their presentation, they are upfront about their motive to educate. Despite that, they were very popular and widely quoted.
Some ones that stuck in my mind:
https://www.historicacanada.ca/productions/minutes/jacques-c...
https://www.historicacanada.ca/productions/minutes/inukshuk
https://www.historicacanada.ca/productions/minutes/agnes-mac...
https://www.historicacanada.ca/productions/minutes/john-mccr...
https://www.historicacanada.ca/productions/minutes/sitting-b...
https://www.historicacanada.ca/productions/minutes/halifax-e...