One of the problems is that many people have been brainwashed to believe that TV is a necessity; it isn't. When I was a kid, we didn't have TV 'til I was in the seventh grade; we were among the last in the neighborhood to get TV when it became available. After leaving home, I did without TV until, around 1973, I bought a 12" Heathkit black and white TV set. When that failed in about 1984, I decided to do without TV for a year to decide whether I really wanted to replace the TV set. Finally, in 1995, I bought another TV set.
There are some good TV programs available, especially on PBS. However, most of what is on TV is nothing more than low grade entertainment. Even the commercial news programs are as much entertainment as they are news, else they wouldn't have two newscasters, one a man and one a woman, taking turns reading alternate lines of the news. Significant time is spent on news programs telling jokes. Some news items are given far more time than they deserve and some important items are not even covered. There is little or no background information to put news items into context. Many of the commercials seem to be aimed at 10 year olds, even including commercials advertising cars, deodorants, and laundry detergents. Some programs are aimed at voyeurs, including Judge Judy and others the attraction of which seems to be to enable viewers to gawk at people who mess up their lives by making unbelievably stupid mistakes.
Again, TV is not a necessity. Even so, there should be provision for parents to block out programs depending on various rating indexes. It might not be a bad idea to require a key to turn on the TV set. Ideally these things would not be necessary, but considering the number of parents who use the TV set as a baby sitting device, it would be helpful since that is unlikely to change.