This is one of two fine books that place TV in the context of the incipient digital age. Where Palmer, writing in 2006, sees TV as likely to retain its position as the dominant large-audience medium in our society, George Gilder's brilliant 1990 polemic "Life After Television: the Coming Transformation of Media and America and American Life" predicted, somewhat wishfully as recent history has shown, that top-down, oligarchical TV - a medium still controlled in 2013 by the corporations that own it - would be supplanted by the grass-roots, democratic phenomenon of the networked personal "telecomputer", as Gilder's archaic term for the PC.
Palmer's focus is entirely on dollars and cents, not democracy, but his book, full of technical detail that he reduces to useful "Key takeaway" summaries at the end of each chapter, shows how "networked TV" assimilates digital technologies in ways that keep it at the top of the heap of modern communications technologies.
Dispassionately, Palmer does acknowledge the democratizing power of digital technologies: "Ubiquitous, democratized production capability has flooded the Internet with content representing a very wide quality delta. As the gatekeeper's role is assumed by the proletariat, we may experience interesting sociological changes."
These very different books complement each other. Go back to McLuhan's Understanding Media and it seems to me you have most what you need to know modern communications technologies.