First, if you're in an area where a government deems as needed internet shutdowns, I think entertainment addiction will be the last of your concerns.
Now, if services go down for another reason, like a very bad storm, a car hitting where cables pass, a DNS server blowing up, etc., but in all cases if energy is still active, I strongly suggest that you preemptively go DRM free digital, DRM free physical and/or physical with local DRM check (e.g. DOS and earlier Windows games).
At least legit and digital, games and music are the easier to find, books and comics are a mixed bag, movies and series are rare, and trying to remember if there are any groups I missed.
As for physical, if/as you start collecting, I suggest you also buy hardware that can back them up, in cases it's possible.
Though for both native digital and physical back ups, both will be taking an horrid amount of storage, specially if you apply redundancy, so also consider buying external HDDs.
And regarding social interactions, maybe buy a set of walkie-talkie radios or similar to keep between you and your local friends? Some form of LAN communication might be possible too.