@nikolal
Digimon was a real good show back in my time, when I was young. I highly doubt you can find it in higher resolution, but trying never hurt.
@salsa20 is right about datahoarders. In fact, they are currently backuping all YouTube videos about cyber security because youtube is taking them down. I will join them as soon as I get a couple of 10TB drives.
They "might" be able to help you, but it's a long shot, indeed.
@nikolal @Vortax I see it available on the pirate bay. In Spanish 😅
I've heard /r/datahoarders sometimes use their hoarding for good. Long shot but make a post and see if anyone has it is willing to also make it available for you?