30 hours per person per weeks seems absurdly high to me - that would be one 3 hour program every week-night, two (6 hours) on Saturday and three (9 hours) on Sunday.
I would be really keen to see what some actual values are, and the breakdown by age group.
I've recently moved into a new place and we haven't even wired up the TV arial, and even with a Netflix subscription, it's mainly for the kids shows - and even then we heavily restrict the amount of time they can watch TV.
Consumption for my wife and I now is generally Netflix if they have a show we like, or Plex for specific shows we can't get on Netflix - even then this would top out at _maybe_ a couple of hours a week.
Time on reddit/hn is a completely different story...