The first two seasons are captivating and original, I couldn't look away. They were also British (which the show is meant to be). Then something in the third season shifted, the writing of the episodes changed. I found myself bored, and they were American actors in very American episodes. Guns and army personnel, had me distracted and disoriented, forgetting that I was still watching Black Mirror. I am yet to watch the fourth season, but I am hoping they go back to original ideas and mind the bending episodes, fans love so much.