Closed TV channels you miss.

[Moe]

well, theres goes the channel that aired blue sky studios films and some hidden gem films

Yes, I remember they aired Blue Sky Studios films a lot in 2000s and 2010s, also well known TV show - Fraggle Rock, even aired on Disney Channel during premium era too.

Space Jam and tons of family movies too.

and also, are there hbo family in international countries?

Yes, in Asia and Latin America.