Watching too much TV can do us harm.First of all ,it is a waste of time.We can read books when we watch less TV.Secondly,watching too much TV is bad for our eyes.Moreover,watchingTV is bad for our hea...大神，这有点少啊Nowadays, television has become the most popular media of human kind. It’salso the indispensable device in our daily life. By watching TV , we can see many things happened in the surrounding us world , therefore it help us to catch and avoid being dropped back from the world of information. Everything contains good side and bad side and television has no exception . Wasting timeis one ofthe inherent disadvantage of watching TV. Let’s imagine : if one day , one person spendsa hour watching TV without gaining any useful information , then in one year he will waste 365 hours and in 10 year is 3605 hours. With that time , you can learn several language as well as finish some studying course. On the other hand , television programme are not always suitable for all ages.Sometimes , there are some movies contain sexual material and violence which affected the stormy phase ofgrowing of children and teenagers and should not be watched ,even by some adults. It will be extremely dangerous if parents neglect their children to discover the TV programme themselves as they will immediately take influence of what they see .To rectify this situation , parents must supervise their children ‘s TV watching throughout their childhood and adolescence period. In the aspect of health , spending hours watching TV is harmful to your eyesight . Why don’t play some sport and breathe the fresh air .When your eyes are tired , you ‘d better let them rest than continue to paste them in the screen.In my summary, I have reached a conclusion that nowadays, television is indispensable Although it will be replaced by computer someday, but TV’s benefit to our life sill guarantee it as the most important device which people need , in order to be up-to-date.