There is always something out there regarding the influence television has on babies. A new research projects suggests that even background TV may delay infants speech.
Essentially, it appears that while a television is on both the parent and child/baby speak less. Thus, there are less words exchanged and less interaction. This in turn impacts the child's speech development.
Makes sense to me! Thats just one of the many reasons we dont have the TV on for Brooke :)