1.   BellSouth had previously announced plans to give up antenna-based service in favor of a satellite signal of its own.

2.   Because satellite signals cannot be blocked by political borders, though, the signals continue to be transmitted into Canada.

3.   A satellite signal is distance insensitive, and is the way to satisfy demand in those areas.

4.   Additional equipment costs can be imposed when more than one television is equipped to receive satellite signals.

5.   Cable companies also are likely to carry GEO-TV, downlinking the satellite signal and transmitting it into homes.

6.   Cliffs, trees and buildings can block the satellite signals.

7.   Consequently, satellite signals get lost.

8.   Digital sets will incorporate decoders for translating digital television broadcasts, much like the set-top boxes that now convert satellite signals into pictures and sound.

9.   ESPN, which is owned by Disney, and MTV, owned by Viacom, are both distributed in China through satellite signals that are retransmitted by cable.

10.   For one thing, the GPS satellite signals are often blocked when offenders are inside buildings or outside in areas with many tall buildings.