Here is what I wrote below.
In my answer, I will be talking about my two set products Stranger Things (ST) from the US and Deutschland 83 (D83) German long-form television drama (LFTVD).
The theory of postmodernism is a general set of ideas about current media products created after modernism this means that a plot would reference past cultures.
One feature of postmodernism displayed in ST is the homage to the 80s which is shown mise en scene e.g., costume hairstyles, props denotations of props such as 1980s style record player cathode-ray tube tv with an indoor aerial and references to Spielbergian films like E.T. For example, in the opening sequence of ST there was a panning shot a scientist getting chased by an unseen creature contrast cut to best friends; Mike Wheeler, Dustin Henderson, Lucas Sinclar, and Will Byers playing games in Mike’s basement. Similarly, at the beginning of E.T, there were unseen creatures who we would soon learn to be E.T and a contrast cut as well to friends also playing a game. Furthermore, they were both playing the game Dungeons and Dragons. This is a fantasy tabletop role-playing game first published in 1974. They play the 1983 Expert edition of the game in Mike's basement. This is also an intertextual reference to a board game that was very popular during the 80s. The older audience may feel a sense of nostalgia for this game as result reflecting the audience who watch to feel this nostalgia.
Similar to LFTVD in the US, the German LFTVD D83 uses 80’s intertextuality. For example, in the opening sequence, a TV shows Ronald Reagan, President of the USA infamous “Evil Empire” speech talking about the dangers of communism and his plans to attack Russia which led Union of Soviet Socialist Republics (USSR) which would also affect East Germany which is near it. Setting the scene of the Cold War between the two superpowers – the United States and the USSR. This was a period of political tensions when distrust and fear could easily have escalated into a catastrophic nuclear war. It was an ideological conflict between the more liberal democracies in the West compared to the communist authoritarian states in the East. Germany was in the middle. At the end of the Second World War Germany was split by The Berlin Wall into the West which was capitalist allied with America (America established NATO in response to the threat posed by the USSR) and the East communists which were supported by the USSR leading to espionage and economic sanctions.