Watching too much TV can harm children in several ways. It can negatively influence their development of values through exposure to violence, sex, and alcohol in TV programs. It can also negatively impact their physical health by reducing fitness and potentially leading to obesity from lack of exercise and exposure to junk food advertising. Additionally, excessive TV watching can prevent children from gaining important social skills by interacting in the real world, which they will need to develop for healthy social and emotional functioning. While TV can provide some educational benefits, the harms of too much viewing outweigh any positives.