Trying to add a title to cosmos a space time odyssey, imdb breaks, such a pain, how to add title?

I am just trying to add a credit to cosmos as crew, but imdb just goes in circles, it wants you to give it specific details about the series or dates when it already knows it, but it wont take any type of combination to move past the first new title page...missing the old imdb. Any tips for this madness?