11.   Broadcasters want to move to digital format to compete with cable TV and the new TV services beamed from satellites, which offer super-sharp pictures and more channels.

12.   Broadcasters want to offer digital services because cable TV is moving to digital format and satellite TV services are already digital, which allows higher picture quality.

13.   But beginning next year, broadcasters will begin transmitting in the digital format used by computers.

14.   But Campbell said that PBS stations would need help to raise the money needed to convert their signals to a digital format.

15.   But cellular phones also can use a digital format.

16.   But for now, no digital format has the richness of film, and some question how long digital media, like magnetic tape and CD-ROMs, can last.

17.   But the real problem, Pesce added, is the encoding of films for the digital format.

18.   C-Cube develops and markets chips used to decode video and audio stored in digital format.

19.   Currently, companies are able to convert video and audio files to digital formats for viewing on the Web.

20.   Different networks already have announced they will broadcast in different digital formats.