WBill Jr. and I like watching them make stuff blow up.
And Cannons. He particularly likes the cannons.
(I skip the beheadings. :-) )
I let my kids watch it — even the decapitations. My 5yo daughter thought it was funny (I’m not sure if I should be disturbed by that or not). My 2yo son likes the explosions. I just didn’t want someone to plop their kid down in front of the TV for a semi-educational science show, only to be met with a surprise decapitation.
Some parents are more sensitive to that kind of thing than I am. Then again ... my daughter watched 24 with us some also, so violence doesn’t really bother me much.
SnakeDoc