>>94065084Funding is not the issue, it's that in the 80s the yen to franc exchange rates were much higher then today's yen to euro dollar rates.
As for Superman, TMS was only willing to animate it if Timm's crew streamline the designs, they did but TMS also handled animation pre-production due to smaller budgets from Kids WB compared to Fox (WB did all pre-production for Batman:TAS themselves, TMS only did pre-production on Superman:TAS & TNBA due to cost).
TMS also had to have 99% of the ink & paint and shooting done in Korea as well (Over the Edge being the only episode when the animation stays in Japan) due to the budget cuts from Fox to Kids WB as well.