We're currently in production of Season 3 of The Garfield Show and no, I have no idea when these new episodes will air in your country. It probably won't be for a while.
I don't have a list of all the episodes yet. Matter of fact, I haven't even decided on the title of the one I'm writing this evening. Anyway, there seems to be a new Internet sport. People go on the Wikipedia episode page for the show and enter phony titles for Season 3 episodes. They'll probably be removed shortly but right now, there are three up there that are bogus.
Attention, Lord High Masters of Wikipedia: Any episode info that gets posted for Season 3 is not to be believed until I verify it here. When it's time, I'll post a list. Thank you.