I thought of Postman when I read the original post too. Chris Hedges' Empire of Illusion is also worth reading.
When I was a kid discussion of McLuhan contrasted television with other media being consumed, and it was not only possible but completely natural to discuss television as being quite unlike the newspapers we read, or magazines like Life or National Geographic in general circulation. My 1970s junior high school computer room contained two teletypes clacking text onto rolls of yellow paper. Today we discuss how to speed up the video spewing from our computers. Something Postman does well is to point out not simply the amount of television Americans watch, but the extent to which, even in 1985, media like American magazines had changed their presentation to emulate television.
In the 21st Century along with the demise of print media the remaining news outlets which for decades had issued a printed product increasingly produce news packages which entertain, rather than inform, as does television. One effect of growing up in a world increasingly filled with video entertainment is that people see themselves as primarily entertaining rather than informing each other, and consumers rather than citizens.