To choose the audio languages that are downloaded with your videos, open the Settings app, scroll down and tap TV, then tap Languages. Pick the subtitles or audio language that you want. While watching a video, tap the screen to open the playback controls. To change the default audio language in Settings, go to Settings > Video and Audio > Audio > Audio Language, then choose the language that you want. Or use your smart TV, streaming device, or game console remote to navigate to the Audio button. Use your Siri Remote or Apple TV Remote to swipe up and select the Audio button.

Audio languages on Apple TV, smart TV, or streaming device On Apple TV (3rd generation), hold down Select on your remote for three seconds while a video is playing to see the Subtitles tab. Learn how to turn on CC or SDH by default If you're using a smart TV or streaming device, go to Settings > General, then turn off Automatic Subtitles. If you don't want automatic subtitles and you're using an Apple TV, go to Settings > Video and Audio, then turn off Automatic Subtitles. To change the default subtitles language in Settings, go to Settings > Video and Audio > Audio > Subtitle Language, then choose the language that you want. Or use your smart TV, streaming device, or game console remote to navigate to the Subtitles button. Use your Siri Remote or Apple TV Remote to swipe up and select the Subtitles button. Or on a remote for a smart TV, streaming device, or game console, press the button that brings up the video timeline. On a Siri Remote or Apple TV Remote, press the Play/Pause button while watching a video to bring up the playback controls. Subtitles on Apple TV, smart TV, or streaming device

Turn on subtitles or audio languages using the remote for your Apple TV, smart TV, or streaming device. On Apple TV, smart TV, or streaming device Learn how to choose audio languages, subtitles, closed captions, and other accessibility features on your iPhone, iPad, computer, and Apple TV. Change subtitles or languages for videos in the Apple TV app

Netflix subtitles settings