Graybeard
I have great respect for Public Broadcasting in the US, but this program failed miserably. I wonder if major sponsor, billionaire David H. Koch, didn't have too much editorial input?
I wouldn't go so far into wondering.
Programs like this are conceptialized based on written reports, various experts contacted, scripts written against what some experts postulate, then deeper experts are consulted for support or refute. Then talking heads that can explain a theory that the script is written against are asked to explain during filmng.
They were ammendable to making changes in their script if a talking head can't support it.
Just like with PPrune you have to be able to read between the lines to comprehend its veracity