I'm sure that's true for you, but I think they look better in retrospect because they just remind us of being young. I can'tactually remember many kids I knew liking them that much. We much preferred things like Wacky Races and Battle of the Planets (US and Japanese respectively).
Oh, and I forgot about The Man From Uncle. That, and Mission Impossible, were simply brilliant.
I must admit that I grew up in the '80s, so these things were only on occasionally or when I was very very young .... or the more contemptory UK things like SuperTed and so on

. The thing is though, being a kid, it didn't really matter much, becuase they were just one of many things on to watch, and there wasn't any issue with it, heck, yes, we also watched things like Wacky Races too, but it was all just a small part of a larger picture, there was no hate for them.
Also, with the more ..... how can I put it? patronising things like Blue Peter, you just took what you needed to from it and either ignored or had a moan about the rest, which really did go up it's own ar*e. Simple!
Newsround might have been the same, but it was eminently more useful.
Well, I thought anyway - I had a big Sister who just hated anything like that and I was made to feel like an idiot just becuase it was more easier to understand than the normal adult news .....which she never watched anyway. Gowd I feckin' hated her, the amount of moaning about things she did, everything always became so toxic with her! Everything was always crap and she sucked the life out of things
It only made me more determined to watch them!!
The reason why I am saying this is because from your post, it sounds like you would have been similar to my sister, gowd I would have hated ya and yer pessimistic views!!

I am probably wrong though.