Do you know the reason why PPGZ never aired in North America, most of Europe, the Middle East and Africa? I still think that the reason why PPGZ never aired in the US was because a dub separate from the Ocean Group one was planned for the American audience, but never materialized.
Retro kids shows are like fries. They complement both steak(retro grown up shows) and burgers(modern kids shows), but are NOT to be used as a main course. Kids won’t watch a network focused on retro kids shows because they’re focused on new(or at least modern looking) shows, and adults won’t watch a retro kidvid network because they think that they’re too old. Hence, all retro kids networks either change focus or die
Of the 3 Madagascar shows we have, All Hail King Julien stands out with its title and location. Unlike The Penguins Of Madagascar and Madagascar: A Little Wild, this one takes place on Madagascar while the others are in New York through an alternate continuity. Conversely, AHKJ is the only one to not have Madagascar in the title.