According to the study, children who watched TV for long periods when they were five years old had an additional risk of developing anti-social behavior by the time they turned seven. However the researchers found no such risk if the children played computer games.
The researchers added that there was no clear evidence that setting a maximum TV time limit for children could lead to improved emotional problems and attention span.
"Our work suggests that limiting the amount of time children spend in front of the TV is, in itself, unlikely to improve psychosocial adjustment. In future it will be important to look at the influence of what children watch on TV, and the role of parents watching with their child and discussing content with them, as well as how much children watch.", lead researcher Dr Alison Parkes said.