Casting audio, video, pictures, and more from your smartphone or tablet to the TV is one of the easiest ways to get content from the little screen to the big screen, but it requires an app that supports the feature in the first place. For example, try using Adobe Reader or Google Docs to cast a PDF to the TV. You're out of luck.

Thankfully, enterprising developers like Stefan Pledl—the creator of LocalCast—have been able to whip up some really nice looking solutions that allow users to cast almost any consumable content to the big screen.

This contest is now over.

The final results are listed below. If you've won, you will be contacted in the near future. Congratulations!

Everyone else - keep participating and stay tuned to Android Police so that you don't miss our upcoming giveaway announcements. You can follow AP on Twitter, Facebook, and RSS.

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And out of the bunch, LocalCast is easily one of the most powerful. It supports casting videos, pictures, music, PDFs, and a lot more to basically all of the popular smart TV devices: Chromecast, Roku, Android TV, Fire TV or Stick, Apple TV, Xbox 360 and One, as well as Smart TVs from Samsung, Sony, Panasonic, and more. Basically, it covers the gamut.

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If you're in the market for one such application, we have 50 promo codes for LocalCast to give away, courtesy of Stefan. These codes make use of the new developer-generated promos codes system available in Google Play, which makes it incredibly simple for both devs and end-users.

So yeah, just drop a comment below and say something nice about LocalCast, casting in general, Chromecast…whatever, really. We'll randomly pick 50 winners shortly after the giveaway ends on Sunday, January 24th at 11:59 PM PT and send the codes out.