My business produces storytelling videos for e-commerce and we almost got into the television/entertainment business at one point, as it is simply so cheap to pump out middling quality documentaries. Stock photography and interviews and cheap-but-good editing. You’ll notice solo YouTubers are making great documentaries. I don’t know how they are spending so much money considering the quality of much of the crap they make. High schooler YouTubers make similar quality with their iPhones.
There must be thousands of talented directors who haven’t been given their big break yet who have artistic ideas and would almost work for free to be given a chance to make a name for themselves. Give them resources and a chance and see who has what it takes.
This is only one relevant factor, ofcourse.
Unrelated: I’m currently trying out CuriosityStream so I feel less guilty for the time I spend watching TV. At least I’ll be learning something.