Our kids have had their own TV's for years. They go watch movies in them and have very limited channels they can go to. They often are playing and just have the TV's on in the background. When they go to someone else's house where the TV is on, unless it's some movie they haven't seen, like Malificent, they'd ignore the TV all together and just play.
Now my friends that limit TV and electronics, when their kids come over they sit like zombies and can't turn away from the screen. If they're staying the weekend or something they eventually get enough and stop even looking at it.
The kids got google tablets for Christmas 2 years ago. The girl still has hers, the boy dropped his and the screen cracked. Half of it worked and half didn't.
They both have had 3D DSi hand held games for several years. We got refurbished ones from Game Stop and filled their carrying cases with $5 games at the same time.
I don't limit their time to certain amounts of minutes each week. They automatically have a couple of hours each evening if they want. The boy is from 4-6 because he doesn't have after school classes and stuff. The girl is from 6-8 which is after all the stuff she does.
They can ask for time any time during the day when they're not in school. The timer goes off after an hour so they can share the desk top. If the other one isn't waiting they can stay on however long they want.
IF IF IF they got into trouble for something we have the enormous leverage to ground them from the computer. They don't want to lose it for an hour and certainly don't want to lose it for a day.
I'm a different sort of parent. I am older and raising grand kids now. I see the bigger picture and it really doesn't matter what they do with their free time. They go to school, that's their "job", for over 8 hours per day. They leave by 7:30am and don't get home until nearly 4. They don't have homework unless they didn't finish stuff during class time. They stay inside and work on stuff if they're not getting the assignment done.
They come home and have extra activities like BMX, soccer, football, tumbling, dance, piano, and more.
They aren't lazy fat kids who sit on their hineys all day. They are up and moving and using their brains for the majority of every single day. They deserve to have total free time.
I do have strong parental controls on the TV's and electronics and let them have them.
The kids have also had FB pages since they were maybe 7 and 8. I changed their birth years. I manage their friends, I manage their online time, I manage what they post and see. They don't know their email addresses nor their passwords.
It's not FB's job to police my family's use of their media sight. It's MY job to manage them and their time online.
I have the desktop where I can see the screen from any point in the living space. It's right here where I can see if from the dining room, living room, study, and kitchen.
Their friends are there grandparents, aunts and uncles, their cousins, and a few choice friends from school.
I have their privacy settings where they can't be searched by name and only friends can see what they post, their pictures, and every little detail. I manage several businesses FB pages and am fairly confident I have their privacy intact. They are as protected as they can be.
When they are old enough to have their own actual FB pages they'll get new ones and these old ones will be deleted. They'll have enough experience to know how to handle stuff and the dangers out there.