I've thought about this, too. The difference is that for most of us, TV shows ended at the top/bottom of the hour. I grew up watching morning cartoons in the 1980s starting at 6am, but the times that the shows ended reminded me that it was time to get dressed, eat, etc.

Now, all the video services have feedback loops where they can determine what keeps people glued and provide more of that. Some "programs" like cocomelon have dialled that up to 11.

The only defence is the terrible parental controls and/or taking devices away. That almost always results in "fights".

TVs didn't create echo chambers tailored to a person.