The changing face of television sets People have been watching TV for more than 70 years.Did the TV sets in the 1940s lo
The changing face of television sets People have been watching TV for more than 70 years.Did the TV sets in the 1940s look the same as today's?They were very different,in fact.YVs will also be very different in the future.The future of TV is Digital Television.DTVs have a wider screen than ordinary ones.The screen looks just like that in cinemas.The best things that DTV gives people are clearer pictures and better sound.Pictures on a DTV set are very bright,clear and life-like.The sound is as good as that of a CD.At home you will be able to enjoy watching TV as if you were in a cinema.Sometimes people call it High Definition TV.HDTV is the best DTV.With DTV,people will have a bigger choice of programmes from the same station at the same time.For example,you can choose to watch the news,sports,a sitcom or a children's porgramme on CCTV1 at 7 p.m.You can see DTV sets in some shops now.Most of them ar4e still very expensive but the prices will come down in the future.
电视机面孔的改变 人们看电视已经有70多年的历史了.但是20世纪,40年代的时候的电视机与现在一样吗?是有很大不同的.事实上,在将来,电视机也会有很大的改变的.将来的数字电视机 数字电视机和普通电视机比起来,有一个宽屏,看起来就像在电影院里一样.最好的是,数字电视,可以给人们提供更优质的画面和声音,画面在数字电视里非常的明亮清晰,栩栩如生.声音就和cd机里一样美妙.你可以在家看电视就感觉在电影院一样,一些人称之为高清电视.高清电视是最好的数字电视.用数字电视,人们可以在同一地点,同一时间,选择更多的频道,例如,你可以选择看新闻看体育报道,或者儿童节在晚上7点的cctv-7 你现在可以在一些商店看到数字电视,大多数都是比较昂贵的,但是,在将来,价格将会降低.