Watching television is often said to be completely unhelpful for children, but with healthy viewing habits and parental supervision, doing so can bring positive experiences for children. Watching Tv helps children learn about a variety of topics and helps them have a good imagination Through the media, children can explore places, animals or things they cannot seen in life or yet to go there. It also helps children to be more eager to read books and inspires @ extracurricular activities in school ... Besides the effect of watching Tv, there must be harm. If we let children watch TV too much, it can greatly affect their health, mental development, personality ... Therefore, we should let children watch for 1-2 hours, absolutely do not watch while eating and should choose cartoon and television channels that are healthy for the child's age. We should choose a TV with a high definition screen, and adjust the lighting appropriately. It is also an effective way to help protect eyes while ensuring children's need to access information and explore the world.