I was gonna post the same question. I was following the channel
Aviation Training Network and some time ago they erased all their content. They had all subjects with good explanations.
My theory is that they realized that the short term future of ATPL courses is gonna be online (I'm currently following clases online since may), so they understood the potential of having a digital adapted ATPL course. Probably they will start to sell that content to flight schools. If you think about it its crazy that those channels had all that content for free.
PD: This being said, if I find a similar video course I'd share it here.