A lot can be said against Teletubbies. They do not talk, so they do not stimulate the baby's language development. They do not educate, only entertain, and they are plain weird - stuffed-toy-come-alive aliens with TV screens in their belly.
I can agree with some of that; Teletubbies definitely should not be used as a babysitting service, with the baby watching them all day long. But, on the other hand, I think those who strongly oppose this show take Teletubbies too seriously. Teletubbies are made for very young children, no wonder the show is so simple. They are cute and friendly, you can be sure they are not going to frighten your child, and you know they will not do anything mean or inappropriate.
This particular DVD shows Teletubbies falling, which, if you stop and think of it, is something of importance for a baby who is starting or will be soon starting to walk. The way Teletubbies fall shows that it is not scary or painful; it just happens, and it can actually be quite funny, and then you just get up and go again.
When my grandson was little, he watched Teletubbies in moderation, and I think the simple concepts they introduced and the way they introduced them were helpful.