Ok, I'll assume this is not a hoax so I'll theorize on what's in the videos.

The fellow mentions that the rods are composed of 73 and 74 elements respectively. He does not say whether they are unique chemical elements or compounds, though reading the comments to videos, someone suggested that it might be actually element 73 and 74 (Tantalum and Tungsten/Wolfram).

In any case, if we think in the way of batteries, they commonly use two different elements with fairly opposite electro-potentials submerged in an electrolyte. So in this case we have two rods of unknown electro-potentials in air (aether?)

Since he is using a normal light bulb (25 W) in the demonstration I have to think there's some electron movement happening else it would not lit?

The two rods interact with the air and there's electron movement from one to the other. I would think that the resistance of the rods/air circuit is pretty high as well since he is touching them closing the loop and not getting shocked. He does say that the power output of that configuration is around 18 W while the light bulb is 25 W so the light does not shine as bright, bur never the less.

Your thoughts on the above are welcome.