Following up on the last post, this study shows that eating in front of the tv leads to problems as well. One group ate lunch in front of the tv while the other did not (same meal). The group that watched tv ended up consuming more calories later on:
"These results suggest that the effects of television watching on food intake extend beyond the time of television watching to affect subsequent consumption. They further suggest that this effect may be related to an effect of television watching on encoding of the memory of the meal."