I'm Rambling

If the nature of televsion allows it to reflect social values in its entertainment, do networks have a public responsibilty to broadcast programs that are concerned with relevant issues? But in addressing relevant social issues, programs are often labeled controversial. Do networks purposely aim to be controversial to garner viewership, or are they committed to reflecting social values? Or, should televion be offered as an escape from the real world, without trying to impart values on its viewers?