“Black Mirror” is hands down the most relevant program of our time, if for no other reason than how often it can make you wonder if we’re all living in an episode of it.

This prescient and mordantly funny science-fiction anthology is smart enough to be just barely ahead of its time. It doesn’t imagine interstellar civilizations or postapocalyptic scenarios. Instead, it depicts variations on a near future transformed by information technology — our world, just a little worse.

In one episode from an earlier season, characters carry an implant that records their every experience — a kind of cranial Google Glass that ends up torturing a man who learns his wife has cheated on him. Another imagines a society in which citizens can block people who displease them, rendering them as mute blobs of static — a whole-body version of Facebook unfriending.