问题描述：
1.Because television’s first large-scale transmissions included news programs quickly became popular with the public.
2.By increasing the time allotment for network news to thirty minutes increased the prestige of network news programs.
3.Lloyd Robertson’s outstanding characteristic is credible as a newscaster.
4.A disaster is when television news shows get some of their highest ratings.
5.One reason television news captured widespread attention is because it covered the Vietnam war so thoroughly.
2.By increasing the time allotment for network news to thirty minutes increased the prestige of network news programs.
3.Lloyd Robertson’s outstanding characteristic is credible as a newscaster.
4.A disaster is when television news shows get some of their highest ratings.
5.One reason television news captured widespread attention is because it covered the Vietnam war so thoroughly.
问题解答：
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