1.   The network is trying to attract younger viewers.

2.   And so, mindful that there are more choices than ever before, the networks try to hook viewers with a mix of familiar names and familiar premises.

3.   As long as a show has enough viewers to attract advertising money, the networks will try to keep it alive regardless of its quality.

4.   As the technology becomes smaller and more lightweight, networks are constantly trying to make the broadcasts more compelling by adding these tiny wonders.

5.   At least one network has been trying to expand his exposure.

6.   Besides offering the regular Discovery lineup, as well as Nova from PBS, the network has tried to regionalize the service by offering locally produced shows and documentaries.

7.   A national television network tried to dupe the Celtics Sunday.

8.   All the networks had been trying to snag him for an extended book interview.

9.   All four networks tried to court the same young adult audience last fall and wound up driving viewers to cable.

10.   But the network tries to edit out those things that push the rating to PG, she said.