Americans who have cancelled their cable or satellite subscriptions still represent less than three percent of the people who watch TV shows online, but the group is growing, and fast.

We see two major barriers before most of the TV-watching public will start switching from their cable or satellite subscriptions to the Internet.

In order to accomplish this, a sports bar would ordinarily need to purchase a separate cable or satellite subscription for each display for which independent control is desired.

Buy a satellite subscription to every game everywhere.

If you ever drop your satellite subscription, they still receive AM and FM.

NBA TV has only 12 million cable and satellite subscriptions (some of them on digital sports tiers), but Commissioner David Stern said he was pleased.

The network has decided to put all of its online offerings behind a paywall for eight days after broadcast, and you can only access them if you have an acceptable cable or satellite subscription.

A satellite subscription is not the only way to get traffic information on your car's navigation display.

Or will video from advertising-supported Web sites become so rich that people will drop their cable and satellite subscriptions altogether?

Since it is only available via a satellite subscription, however, their movement seems to have lost momentum.