Argumentative essay: Is television beneficial or poisonous?

These days there are two machines that almost every houses have: computer and television. Do you know the average time of watching TV for people a day? Maybe you don't. The average time that people watch TV in one day is about 80 minutes. That is, almost everybody watches television about 1 hour and 20 minutes a day. However, as television emerged, several problems were followed as the television developed.

 But because there are too many bad aspects of television, I think television is a troublemaker of these days. I have four following reasons to support my opinion.
 First of all, people who support TV say that watching television is a pleasant way for families to spend time together. However, I don't think so. There are a lot of other meaningful ways to spend time with our family, such as reading a book in the library or going out to eat or take a walk.. Also, while watching TV, we don't talk a lot with our family. For example, my father loves watching baseball games on TV. While watching it, he doesn't say a lot. This is because you only concentrate on the content of the channel you're watching.
 Second, our mind and behavior become strange. It is also not good for your health( I will tell you about the health problem later). When you watch TV too much, you may suffer with depressive disorder, which can cause you even die. In addition, you will have a kind of hallucination symptoms, like you still see the TV monitor even though you're not. Moreover, people who watch television a lot will have passive behavior and you'll not adapt to the society. So, we can say that television may spoil your whole life.
 Third, TV is really addictive, which can harm your health. As you know, there are so many TV channels that you can even watch TV in a whole day! Furthermore, since video games are grafted into TV, we started to use TV as the game player. Many scientists and researchers warn playing those video games and watching TV too much because these can cause you a lot of diseases, such as obesity or diabetes. Do you want to suffer from these terrible diseases? Of course you're not. So, it is desperately needed for you to control your TV watching time as you control your computer game time. But the problem is that already many kids are addicted to TVs as they are addicted to computer games.
 Lastly, television is completely waste of money and time like computers do. As I told you before, average time that people watch TV in one day is 80 minutes. You spend almost 1.3 hour of the whole day on watching TV. Also, you pay lots of money for TV, right? For your better understanding, let me give you an example. Let's say that you bought a new television, which is 1000 dollars. And you had nothing else to do, so you watched it a lot, which costed 50 dollars. In addition, you need to pay the taxes for TV(the electronic tax), so you paid 10 dollars. That means you spent 1060 dollars, which is changed into 1,122,328 won in one month. TV takes your a lot of money from your pocket..
 Actually, I don't mean that we should not watch TV, but the real thing I want to talk about is that you need to control your television watching time.
 Many people say that as the technology develops, we need to control ourselves. Everyone wants to achieve their dreams, and your self-control ability determines whether you will achieve your dream or not. For your better future, why don't you turn your television off right now?