Is ok that my one year old likes to watch tv?

There is nothing wrong with television, shows he can focus and pay attention to something. However, because of his young age, he can form a tendency to ONLY do that. So what you need to do is vary his activities, draw his attention away from tv. Draw his attention by means of interacting with him, usage of toys, and experiencing things other than an animated device. Television can remain positive, but anything in excess is not good. Also, take him outside let him experience it and get a feel for it, kids nowadays don't go outside much just vegetate watching solely television, and that, my friend, drops an IQ or potential immensely