Arkangel
Black Mirror Season 4 Easter Eggs
The Archangel device is touted as the ultimate child-monitoring system, but when an obsessive parent can’t let go, things turn ugly very quickly. There are several Easter eggs seen throughout Sara’s childhood, starting from the opening scenes in which she visits the park with her mother. Sara is holding a Waldo lunchbox, alluding to season two’s Waldo character.
Following that incident, Sara’s mother decides to have Arkangel system installed in her mind. At the Arkangel facility, Sara undergoes a brief operation and then watches military footage to test the system’s sensory parameters. What she watches are scenes from season three’s episode, Men Against Fire.
The real Easter egg hunters will have noticed two other nods to previous seasons. First, later in the episode, teenage Sara has a picture of Tusk, the rapper who dies in “Hated in the Nation.” Secondly, the newspaper article about the cyclist killed is published by UKN, the very same media outlet that reports on the prime minister’s intercourse with a pig in the show’s very first episode, National Anthem.