UK, which imported shows and you'd either get them on BBC, ITV or Channel4, I think Channel 4 had the best early morning cartoon block then it was surfing between ITV and BBC for their 'magazine' style shows that included cartoons. (Live and Kicking/Ghost Train)

And these are the ones I can remember, There is likely more.

The Raccoons, Swat Kats, Godzilla, Jonny Quest, Xmen, Round the Bend (with the team behind spitting image puppets), Spiderman, TMNT, Prince Valiant, The Pirates of Dark Water, Muppet Babies, Trapdoor, Morph, Poddington Peas, Dungeons and Dragons, Bucky O'Hare, Gummy Bears, Animaniacs, Tiny Toon Adventures, Recess, The Wuzzles, BatmanTAS, Rescue Rangers, Tail Spin, Duck Tales, Mighty Max, Sharky and George, Alfred J Quack, Moomins, Biker Mice From Mars, Heathcliff and Friends, The Bluffers, Sonic SatAM, Galaxy High, Where in the world is Carmen Sandiego, Ulysses 31, Saved By The Bell, The Secret World of Alex Mack,

Not vouching for the quality of any of them and would have covered many years (and they'd mix reruns in I don't think we got anything in sync with the US), I generally flicked around for the least boring thing and some of them could be gap fillers that I remember the name of.

Edit: and ITV and BBC had an after school block with more content where there were even more shows and I've tried not to list any of those, but my mind might be going a bit after all this time :D