Child TV habit

Childhood TV habits linked to adult obesity risk
http://www.healthypages.co.uk/newsitem.php?news=5262

Information of the Article
There might be a connection between adult obesity and childhood TV habits. According to the current study, TV watching has opportunities that it replaces physical activities. In addition, children with TV habits tend to see more advertisements for unhealthy food and eat it while watching.

My Idea
I agree that TV watching is replaces time to be spent physically active. However, I disagree to the idea that eating habit while watching link to adult obesity risk. I think that eating habit is a matter of discipline. Parents can turn off TV when children eat. It is easy to avoid eating even if they watch for a long time.