There’s a whole corner in YouTube full of nicely done indie documentaries. One such finding is the History of the Earth channel.
I love this channel because its focus is early earth and its extinctions something that is very rare on YouTube, it is probably the only channel I know of that tells these stories in depth.
The story-writing is great, the narrating and editing fit the theme perfectly. It’s a must-watch if you are into knowing more about how our planet probably looked in the beginning.