Time is reporting about research conducted at the University of Washington showing a correlation between watching baby videos/shows and slower language development. That is, the more time that children spend watching TV, the fewer words they know, on average.
Here’s a link to the article.
This shouldn’t mean parents should rule out letting their kids watch TV or even edutainment but parents should be cautious about how much their kids really are watching. Also, they need to take time to play and talk with their kids – as much as possible. Really young children (less than 6-9 months) probably shouldn’t be watching any TV, especially if it is being used as a “pacifier” for them.