Ban YouTube. Have only 1 movie/TV night.
Mandate books as primary entertainment.
Stock the home library with classic tales of heroism and adventure. Own an encyclopedia set.
Reject the brainshinker system and look to works of more enduring worth.
Videos should be thoughtful. If that's not possible in the family dynamic, shut it down.
YouTube content, thanks to its short-lived nature, has become essentially useless as a shared 'cultural context' unless one is plugged in 24/7.