I really should look into this further. We don't really let DD watch too much TV, however, she is definitely exposed to it when it happen to be on in the room (regardless of whether she is actually looking it at). The most she ever watches is one, maybe two episodes of The Wiggles. It's the only thing on TV she watches. She doesn't really pay as close attention to the TV when I pop in a Baby Einstein DVD (however, she was much more interested in Baby Einstein when she was younger, when she was sitting up, but not after rolling around or crawling).
So how much or little TV do you let you LOs watch per day?