Babies and TV Okay I don't want to sound ridiculous but what is wrong with babies watching TV? Just…

Babies and TV

Okay I don't want to sound ridiculous but what is wrong with babies watching TV? Just read my daily "parenting" thing and it said its recommended no TV until age two. I am just wondering because my son loves watching TV and I will let him lay on his play pad while baby shows or a kid movie is on. Is this just one of those 'don't let babies sleep on their backs' sort of thing?