1.   And in many cases, including New York City, cable operators avoided steep drops in overall revenues by adding more channels to their line-ups.

2.   And they are finding they can sell cable modems and add channels.

3.   A senior FCC official, who insisted on anonymity, said it was difficult to impose rate caps on cable because the industry is constantly adding new channels.

4.   Both DirecTV and Dish Network add channels from time to time but the numbers of existing channels is the same.

5.   But adding channels to existing aircraft is expensive.

6.   But marshaling the technology to provide video-on-demand, or a movie with a click of the button, has proven much more difficult than simply adding channels.

7.   Cable operators have been reluctant during the past two years to add new channels because of scarce dial space and tough new government pricing regulations.

8.   More critical, Hill said, was the need to reshape the chain of command and add new channels of communication.

9.   Networks foresee possible new revenue streams in the device, especially after they add digital channels in the future.

10.   Stations could use it to add new channels or offer their present channels with the sharpness and the clarity of a motion picture.