Alternatively, instead of focusing on conspiracy theories (simply because most people who believe in outlandish conspiracy theories cannot be convinced otherwise, although I think targeting these issues through animation might reach more children and prevent them from blindly believing wild allegations, so conspiracy theories might be a very good topic), you could animate major news events.
Animation technology often does get used in news coverage, but more in an illustrative sense, I'm imagining creating short stories based on the current news.
There used to be a satirical program based on a similar premise in South Africa, but I can't find any evidence of it online, so I'm guessing it failed.
But by making news stories more entertaining (and trying to remain unbiased and reporting the news exactly as it happened) many people who are currently ignorant to current affairs might be educated on what's happening. Children could also enjoy such programs, exposing them to what is going on in the world and perhaps preparing them earlier.
But this idea isn't just focused on children, there are many adults who simply don't follow the news anymore because they feel that it is boring propaganda. So the success of such a channel would rely on two parts.
It needs to be a respectable, accurate source of information. This means that the writers would have to be proper journalists.
The animation needs to be of high quality. If it is done well, it could engage a much larger audience than current news outlets.
I think making use of animation, while it would require more effort, would have a wider reach whether used for conspiracy theories or news.