section_path: Premise/Connections between episodes
section_name: Connections between episodes
paragraph_text: Connections between episodes
  
  Later episodes include Easter egg allusions—small references to other instalments. For example, the fictional news channel UKN recurs between episodes, and the company Fence's Pizza appears in both "USS Callister" and "Crocodile". A large number of Easter eggs are found in news tickers and social media feeds shown in various episodes. The main set of the final episode of the fourth series, "Black Museum", included references to every prior episode of the series. The song " Anyone Who Knows What Love Is (Will Understand) " (1964) by Irma Thomas appears in seven episodes: "Fifteen Million Merits", "White Christmas", "Men Against Fire", "Crocodile", " Rachel, Jack and Ashley Too ", "Joan Is Awful", and "Common People". A symbol designed by Brooker and first used in "White Bear" is a symbol of branching paths in Bandersnatch and marked on a talisman in "Demon 79", among other uses.: 84
  
  Actors rarely appear in more than one episode; those who do have unrelated roles. Aaron Paul starred in " Beyond the Sea ", a space-themed episode, after agreeing to a cameo in "USS Callister" if it did not bar him from appearing in other episodes. Hannah John-Kamen played the singer Selma ("Fifteen Million Merits") and the journalist Sonja ("Playtest"); Michaela Coel was an airline check-in worker ("Nosedive") and the space crew member Shania ("USS Callister"); Monica Dolan acted as a police officer ("Smithereens") and a protagonist's mother (" Loch Henry "); Daniel Lapaine played the minor character Max (" The Entire History of You ") and the doctor Daniel ("Black Museum"). Anjana Vasan and Paapa Essiedu from " Demon 79 " also make cameo appearances in " USS Callister: Into Infinity ".
  
  Some writers believe that Black Mirror episodes are set in a shared universe, due to the abundance of Easter eggs, or tonal and thematic connections across the programme as a whole. Fans and journalists have attempted to establish concrete chronologies between episodes. The series creator Charlie Brooker 's comments on this topic changed over time. He initially described the programme's setting as an "artistic universe" or "psychologically shared universe". After the release of the third series, he said that a line in "Hated in the Nation" that references the central crime in " White Bear " established a "canonical" connection between them. Brooker said of "Black Museum" that it "does actually now seem to imply that it is all a shared universe".
  
  However, he described the Easter eggs in 2018 as "an extra bit of texture for fans" and not a consideration that limits the design of new episodes. After the sixth series, Brooker commented that the viewer could consider each episode to be a Streamberry show—the Netflix parody featured in "Joan Is Awful" whose titles reference previous instalments.
  
  Later episodes include Easter egg allusions—small references to other instalments. For example, the fictional news channel UKN recurs between episodes, and the company Fence's Pizza appears in both "USS Callister" and "Crocodile". A large number of Easter eggs are found in news tickers and social media feeds shown in various episodes. The main set of the final episode of the fourth series, "Black Museum", included references to every prior episode of the series. The song " Anyone Who Knows What Love Is (Will Understand) " (1964) by Irma Thomas appears in seven episodes: "Fifteen Million Merits", "White Christmas", "Men Against Fire", "Crocodile", " Rachel, Jack and Ashley Too ", "Joan Is Awful", and "Common People". A symbol designed by Brooker and first used in "White Bear" is a symbol of branching paths in Bandersnatch and marked on a talisman in "Demon 79", among other uses.: 84
  
  Actors rarely appear in more than one episode; those who do have unrelated roles. Aaron Paul starred in " Beyond the Sea ", a space-themed episode, after agreeing to a cameo in "USS Callister" if it did not bar him from appearing in other episodes. Hannah John-Kamen played the singer Selma ("Fifteen Million Merits") and the journalist Sonja ("Playtest"); Michaela Coel was an airline check-in worker ("Nosedive") and the space crew member Shania ("USS Callister"); Monica Dolan acted as a police officer ("Smithereens") and a protagonist's mother (" Loch Henry "); Daniel Lapaine played the minor character Max (" The Entire History of You ") and the doctor Daniel ("Black Museum"). Anjana Vasan and Paapa Essiedu from " Demon 79 " also make cameo appearances in " USS Callister: Into Infinity ".
  
  Some writers believe that Black Mirror episodes are set in a shared universe, due to the abundance of Easter eggs, or tonal and thematic connections across the programme as a whole. Fans and journalists have attempted to establish concrete chronologies between episodes. The series creator Charlie Brooker 's comments on this topic changed over time. He initially described the programme's setting as an "artistic universe" or "psychologically shared universe". After the release of the third series, he said that a line in "Hated in the Nation" that references the central crime in " White Bear " established a "canonical" connection between them. Brooker said of "Black Museum" that it "does actually now seem to imply that it is all a shared universe".
  
  However, he described the Easter eggs in 2018 as "an extra bit of texture for fans" and not a consideration that limits the design of new episodes. After the sixth series, Brooker commented that the viewer could consider each episode to be a Streamberry show—the Netflix parody featured in "Joan Is Awful" whose titles reference previous instalments.