My boys love watching reality TV. Not the drama kind like Big Brother, their favourite is Gold Rush Alaska, Mantracker, The Amazing Race, Truck Universe and so on. They like them so much that it's become part of the play time as well.
We have had a pile of gravel for a while and the boys have been mining it for years now. We don't dare spread it out any more, they are having so much fun with it. Over the time they have added a "wash plant" aka the hose. They have also started panning for gold in the puddle using a pie tin for a gold pan.
It's been serious business, they have also found a lot of loonies and twonies in there (thanks to Nana).