But what if something truly disruptive were to hit the electrical grid?

Yep!
Free energy! Very disruptive technology, coming to an electrical grid near you.

Well, maybe it will be continuous non-polluting energy first.

And, what is this television thingy your speaking of?

Your new fridge might be a couple pieces of seran-wrap oriented 90° from each other.

And everyone will go back to being a farmer... except with automated greenhouses...