No Playtest? Only episode of Black Mirror so far that actually gave me nightmares.
Actually I was thinking about this the other day. I think one of the things that makes Black Mirror work is that it has many different aspects to it. There's the social commentary, there's the bleakness and horror, there's the terrific acting and writing and personal relationship side of things, and then there's just the 'wow, that's an interesting idea' side of it. All the episodes have all those aspects to one degree or another, just in different levels, and so the episodes you like the most end up saying more about you than about the episodes. Which, you know. It's a mirror.