Cable companies want to offer ala carte but the content providers will never let them, because bundling is how they make all their money, especially Disney. For example Disney forces cable companies to carry at least ESPN2 and several other channels if they wish to carry ESPN. Disney also forces the cable companies to offer ESPN and ESPN2 on their basic package or else they won't give it to them.
As to how will this effect change: The network news operations are massive money pits. They subsidize them through their cable operations, especially NBC. Many low eyeball channels on cable only exist to run old material from news divisions. We need to make these divisions worthless. The cable companies aren't the ones I am looking to hurt, with the exception of COMCAST(owners of NBC). The more you can hurt their profitable operations, and ala carte would definitely do this, the less money they can afford to lose in their news operations. How else can Piers Morgan stay on CNN with only 500k viewers. Look at Current TV as an example. Absolutely no one watched it and yet it sold for 500 million dollars.
The break up of the monopolies is especially important as to how the book publishing industry has been used to basically launder money to the political class for their worthless memoirs. The breakup of Comcast/NBC is an imperative.