For me, it’s Argaï: La prophétie. It is about a medieval prince who got transported into modern world on a mission to save his fiancée. DVD copies are no longer available AFAIK. Luckily, you can easily find all episodes on YouTube.
Ghostwriter! It was exciting! I didn’t get to watch much TV as a kid for reasons and edutainment was one of the few allowed!
idk if it’s not well known but I loved Jungle Run as a kid on CITV
I wouldn’t say it’s less well-known overall, but for others of my generation, I feel like it is…
I was born in '92. My dad apparently liked Thunderbirds (1965-66), so we had the full VHS set. We didn’t have cable for a LONG time, so my brother and I watched a lot of VHS tapes. We grew to absolutely adore Thunderbirds. Sadly, the VHS set is long gone, but there’s a full rip on the internet archive, so I’ve got it all anyway.
Being a child on the 80’s, 3-2-1 Contact and Square One were instrumental in fanning my love of science!
SQUARE ONE! Dut duh nut dow duh, dow duh, duuuh