I was a huge fan when I was a kid. Read all the books, watched the series, collected the magazines (still got them all!) and the figures. I remember the hedgehog's deaths being particularly sad, especially as Mrs Hedgehog could have survived but she refused to leave her husband! I also found the ambiguity over the newt's survival rather bleak.
I don't think Badger died in the books - extra sadness from the cartoon there!
I was a little too old and jaded to fully enjoy Noah's Island when it first aired but whenever I skipped secondary school and it was on, I'd watch. (I wasn't the most rebellious of teens!)
I remember really enjoying David the Gnome but I never saw the episode in which he died.