Ancient Apocalypse is a fantastic series, intriguing, and worth checking out!
After all Graham's done, he should receive enormous recognition for standing out against common beliefs regarding our history. Honestly, all his questions are legit and should be considered uprightly since new confronting evidence has been discovered. By the way, the ones on the other side, who describe themselves as skeptical and say all of this is BS clearly do not understand that so beloved adjective. Being skeptical is about doubting everything, and not taking the first reasonable answer as the correct one, no matter how well structured it appears and/or who supports it.
I think ego is the main cause of conflict on this topic. So if you think you could leave your ego aside and give a chance to consider a new picture in human history, go ahead and watch it; it will make you think and you won't regret.