I've probably watched every episode of it... that has been shown in Sweden, anyway.
I loved the part, especially, when Egyptian hieroglyphics told how they had moved the stones by spreading a powder on them, and writing on a scroll, on them, afterwards, and the stones became light. Maybe it was some sort of nano technology that aliens had given to them, because they certainly had had contact with aliens, without a doubt.
The part where you can see marks from mechanical, huge saw blades, on perfectly cut stones, was kind of telling, also, of how faulty the general perception is on how various structures in Egypt were built (as one example).