I’m unfamiliar with two of those, but I know BBC and NPR quite well. I’d be careful with believing that state media is “independent” just because it’s written down somewhere that it is. Whatever they might say, it’s still the government providing a great deal of their funding, and that same government can raise or lower the money they get.
The BBC is notoriously slanted to the right, but I think gets its reputation laundered somewhat by American Democrats because the American center if much further to the right than Britain’s. When you see how the Tories have attacked them so viciously for having a “left bias” (which is bullshit), it seems reasonable to guess that part of this drift is self-preservation of the organization at the cost of its usefulness to people other than Tories.
NPR toes the Dem line slavishly, inviting to some extent attacks from the right (as Dem-aligned corporate news also does) but rarely even acknowledging that there is a left beyond them (as Dem-aligned corporate news also does).