I have the second season of a series on my “up next” list. Unfortunately, this season isn’t available in my country. What can I do to hide it so it automatically reappears as soon as the season is available? Or can I contact someone to have the season generally hidden in my country?
You can’t do anything about that automatically. You could filter your Progress page to only show items available on certain content providers.
But I that doesn’t translate to Up Next. You could temporarily hide the show from Up Next, but when it’s available again you gotta manually unhide it… so I would advice against that.