We cannot imagine what life would be like without television. First, we can learn all kinds of knowledge through television. We can even be watching what is happening in other parts of the world. Second, television has made our life more colourful. We can enjoy a concert or watch a film at home. We can meet all kinds of interesting people without going out. But to protect our eyesight, we should not spend long hours watching TV. Nor should we forget that we do not live to watch TV — there are many more important things for us to do.