Where to watch the vampire diaries on iPhone?

I need to know As soon as possible where you can watch the vampire diaries on my iPhone. No downloads, no signing up. I don't have a Netflix, and the Cw app doesn't come up on the App Store.

http://www.cwtv.com/cw-video/the-vampire-diaries/

You probably need to get netflix for that, unless its available in the itunes store for rental etc.