Just finished Silo.
Enjoyed it, does well to set up holes in the plot and then actually fill them, and does require that you figure things out for yourself along the way rather than being spoon fed.
It did meander a bit just after the half way point but finished off with a compelling last 3 episodes. It reminded me a bit of Battlestar Galactica in the aesthetic and oddly lo-fi tech, the condensed and borderline desperate humanity still stratified plus an excellent performance from Rebecca Ferguson who reminded me in some ways of Katee Sackhoff's Starbuck, with a twitchy confidence masking inner fragility. Its a good cast all round actually, apart from the lad Common - he's got presence but he's just not an actor bless him.
Foundation next.