At it's heart "Black Mirror" is a scifi show using elements of reality and fiction to create believable worlds and characters. If an episode is not pushing the boundaries of ethics and morality: it is creating fictitious glimpses into near futures that are wholly entertaining.

The first 2 seasons are short and might put people off with it's Anglo centric storytelling. Seasons 1 & 2 appeal more to a British audience but if you stick it out until Season 3 the storytelling broadens to include a more predominant American presence to it's characters and storytelling.

My only criticism of the show is that conflicts within a character are often left unresolved by the end of an episode, leading people to review "Black Mirror" as a bleak or dark description of a fictitious future.

Definitively worth watching/buying on DVD.