Perfect! Another study to make parents feel terrible about themselves....
Wouldn't you rather know about research and evidence of harm so that you can make better informed choices though? You might still decide that on balance, in your situation, for your child, you want them to have a TV in their bedroom and that the benefits outweigh the negatives.
And I agree with other posters, it does seem to be stating the obvious. So many other studies are about saying TVs disrupt sleep etc etc.