If you regularly use Netflix’s instant streaming service, you’ve surely noticed that it whips up descriptive categories based on your personal interests and viewing habits. In addition to “Horror Movies,” for example, you may see a category like “Teen Screams,” and that’s just the beginning.

We’ve just learned that a neat trick allows you to unlock all of those categories so you no longer have to depend on the service to automatically choose specific sub-genres for you. The trick is in the URL, as Netflix uses unique codes to designate categories that may be hidden from your view.

Per Yahoo…

“For example, the numbers at the end of this link: http://www.netflix.com/browse/genre/6839 designate a certain category. And there are unofficial online resources that list all of those codes.”

Check out many of the horror sub-categories below, and see them all over on Ogre’s Crypt!

Horror Movies (8711):