The option to stream higher-quality Netflix content may not work for you or may not appear at all. After upgrading your package, you first need to visit the settings for each profile on your account. Locate the playback settings and turn on the highest quality option. While this action will use more data if you're streaming from a wifi source, it shouldn't affect anything. If you've toggled the option on and still not receiving any HD quality content, close Netflix and open it again. This step gives the app time to register the new settings. Contact Netflix Support for more assistance if your HD content isn't working and you've confirmed you're running at least 25mbps with an HD-capable device.