Is cable/internet bundling illegal

CNet is reporting in this article that the Consumers Union (non-profit publishers of Consumer Reports) and the Consumer Federation of America are up in arms over recent moves by cable companies to bundle their internet and cable services.

At the heart of the matter is whether the companies are unfairly attempting to take customers away from alternative technologies (like satellite or terrestrial antennas) by compelling customers to purchase packages of TV programming and Internet services in order to get good pricing.