There's a good piece by Saul Hansell over on The New York Times' "Bits" blog.
Hansell describes how Comcast is being criticized for low picture quality on certain broadcasts. That's interesting, especially in light of the contention between Comcast and DirecTV on this very issue, but it isn't the most important point in Hansell's post.
Hansell goes on to give a reasonable explanation of the basic issues involved, and mentions the likely future of cable TV: digital video distributed over Internet-like network switches. Instead of always sending every TV channel to every house, a … Read more