There was a recent study done that suggested that television viewing before 2 years was detrimental. I don't have the study - but I could try & find it.

Basically babies need stimulation from gentle roles. The lights and action etc is thought to not be great.

I personally have a minimal tv rule. Certainly when they were really little. Now, there are select shows & I try hard to watch with them.

Like Trillian said when there is no tv it can lead to an obsession...

I find the subtle messages from shows like "The Simpsons" etc really off. So there are shows that are no go in our house.