So little time, so many Netflix choices. The globally expanding movie and television streaming service is great for when know the exact show you want to watch, or if you trust its formula-generated recommendations, but if you’re searching for something new to satisfy your particular mood, sifting through the massive library can be daunting. Sure, there are the basic genres—comedies, dramas, documentaries and such—but for those looking for something more specific, behold: secret codes!

It turns out that there are a lot of different categories and they each have their own URL. To get an idea of just how many options are out there, you can type in a web address such as http://www.netflix.com/browse/genre/2005 (that one will bring up a list of “Quirky Children & Family Movies From The 1980s”), and play around with those final four digits.

Might you be interested in a British animal tale? Type in 1878. How about a courtroom drama based on a book? That would be 4657. Fancy a critically-acclaimed cerebral war movie? 4230. Why not try a goofy comedy starring Adam Sandler? Just kidding, Nobody wants to watch a goofy comedy starring Adam Sandler. (Okay, if you do, that code is 1306).

There’s a list of secret codes here, or you can check out redditor uberw00t’s list posted in Reddit’s Technology community. Now go forth and unlock some hidden categories!