Shortly after discovering Black Mirror, I discovered this discussion of it, on a comedy forum. Here are some of their proposed storylines for the next series:
It turns out that internet trolls are just aliens trying to make first contact.
As a direct consequence of this unfortunate cultural misunderstanding, Earth’s connection to the galactic internet is severely throttled during peak times.
Glitter and Huntley roam freely, sexing children in the open, but getting away with it because they’re passing their penises through the re-animated corpse of Jimmy Saville, using him as a “VPN tunnel” and thus escaping prosecution
THE WESTMINSTER BUBBLE
Britain is ruled by a giant bubble at Westminster. When everyone rebels it floats up above the country and fires on the masses with its DeathStar-style laser guns.
An independent analysis of LHC data suggests that the Higgs boson committed a string of sexual assaults in the 1970s, and high-ranking officials at CERN were aware of it.