At one time I was completely against 1. TV and 2. branded products for small children. TV because it's supposed to rot their brains and make them violent (in fact, the AAP used to recommend none at all for children under 2), branded products because I think they are tacky and ugly (and was worried about over-commercialization, consumerism, etc.).
I changed my mind. Actually, so has the AAP (while discouraging of TV, they now advocate media limits rather than necessarily a complete ban). Now I think the main problem with TV is simply that if a child is watching TV, they aren't doing anything else. Since small children have so much to learn, spending a lot of time on TV watching is going to have negative effects: it's a matter of balance.
On the other hand, watching violence and aggressive behavior (even when it's funny, as in Warner Brothers cartoons) is very bad for small children. So R is not allowed to watch anything like that. Actually her media is very tightly controlled: I don't even think Sesame Street is that appropriate (too much hostility and mean teasing).