According to research done at Vanderbilt University and the University of Virginia infants learn little to nothing from popular educational videos and learn the most from face-to-face interactions with their parents and other familiar figures.

"After watching a video designed to teach vocabulary more a month, the infants did not know any more of the words than children with no exposure to the video," said Georgene Troseth, associate professor of psychology at Vanderbilt. "Babies enjoy watching the videos but don't expect your child to learn much from them."