To slightly digress into the realm of corporate control over channel and content, see this NY Times story (encountered via Ditherati) in which the chairman of IDT has this to say:

"Sure I want to be the biggest telecom company in the world, but it's just a commodity," Mr. Jonas said. "I want to be able to form opinion. By controlling the pipe, you can eventually get control of the content."

Lest anyone continues to believe that such people aren't attempting to take control intentionally rather than just as some byproduct of conducting business.