Although the 21st century has seen a terrific rise in prestige television that has expanded the possibilities of prolonged storytelling, “Black Mirror” has been an experiment like no other. The BBC series, which gradually shifted to Netflix, is an anthology story examining the various sinister ways technology has complicated sociology, politics, and morality as it rapidly expands its grasp on everyday life. While the obvious comparison is to “The Twilight Zone,” “Black Mirror” exists within a gray area in which the stories don’t necessarily feel supernatural. While not specifically intended to be predictive, “Black Mirror” has succeeded in sparking debates that are either likely to come up in the near future or have already become relevant.

“Black Mirror” has returned for a surprising comeback in its seventh season, which includes some groundbreaking new concepts and clever sequels to previously established storylines. While an episode like “Eulogy” aimed to be a more heartfelt,...