Hmmm, I think you and I have very different viewpoints on rest and recovery.
I think it's likely that people aren't resting and recovering enough. I think it's quite possible that a lot of our physical and mental health issues stem from being stretched way too thin as the world around us constantly tries to convince us that we should be doing more, spending more, consuming more because it benefits so much from convincing us we aren't enough.
I legitimately don't know how much downtime people need, it might be down to the individual, I'm not even sure how to even go about working it out because there's no profit in anyone to research it and so much profit to try and sell us remedies when our physical and mental health start to break.
I don't personally think TV is like an addictive drug for the vast majority of the population. I'd say it's more likely that if someone is watching a dangerous amount of television there might be another issue like depression at play.