Ive not seen How does it work? but i'm guessing it is in a similiar vein to How do they make that?
I dont know how old you are but during Playschool in the 70's they used 'go through the round/arched/ square window' and they used to show how things were made- brilliant.
Kids today dont know the are born.......!
They've got a kids prog on now called Tikkabilla which is very similar to Playschool. and Yes I do have kids. I don't sit and watch Kids TV by myself lol
I am watching Tikkabilla as we speak and am finding out how they make lollipop signs- cant wait for big cook little cook where we find out how to make toffee/bread/jam/doughnuts etc etc Come Outside with Auntie Mable is always good for such things aswell - i know how they get stripes in toothpaste thanks to Auntie Mable (and where poo goes to)