“When a Billion Years Disappeared [https://www.youtube.com/watch?v=6R_NAV8Ieuo]”
“That Time It Rained for Two Million Years
[https://www.youtube.com/watch?v=_1LdMWlNYS4]”
“When Giant Scorpions Swarmed the Seas
[https://www.youtube.com/watch?v=1sQXTXbuLYo]”
One thing I like about the PBS Eons show
