Our tv is on most of the day but my kids do not watch it all day they come and go from it depending on what is on. Both have shows they love and will sit quietly to watch (unfortunately not always same as each other) but if it allows me to have a shower in peace I dont mind. Both are active kids and play inside and out and interact well
With others.

Like others have said as long as kids not watching it all day everyday I dont see a problem, the kids who stare at tv and dont move unless tv off have a problem.