My DD is extremely active but fascinated by TV-we have the baby channel..so, honestly, i let her watch cartoons, she laughs and smiles, and it makes her happy. When you have a DC who had AWFUL colic and that works, you do it..
Quite honestly, i am not too concerned she will have any issues from watching cartoons..She is the most active kid i have ever seen and literally wears the heck out of me...My nanny thinks she is hysterical..she cant sit still for a second..we have little play areas all over the house..she rolls from one side of the room to the other, stops, laughes at a show and then keeps rolling..LOL..
Sooooo, i let her do it..now, when she gets a little bigger i will be just like my mother and keep her outdoors alot..we have a pool, big playard for her in the back so..i just go with the flow..having had a tough break with her allergies and everything else, i have learned that a content baby is a happy baby and if watching baby tv makes her smile and laugh while rolling around, yee haw!!! BTW, she is 5 months old-plus, i break the rules of the AAP anyways..i work in the medical field and some of that crap is so over the top it is nutso..my ped loves me, i am constantly challenging him, lol..and you know what, he sometimes agrees with me too..