Worth pointing out that while that documentary isn't irredeemably bad, it gets a lot of information wrong. The whole point about the timing of corn domestication, for example? Wrong dates, and corn wasn't even close to the first crop domesticated. Squashes were and evidence for their domestication in the Americas extends to at least 11k BP. The bronze-making thing? Mesoamerica was notoriously late to game as far as American metallurgy goes, but it had been present in mesoamerica since around the 7th century.

The second has much the same issues with being unfamiliar with current knowledge and an uncritical acceptance of literary sources/narratives.