Please note that not all titles include subtitles. You can find out more information here.

For all titles:

1. Go to your Roku Home Screen.
2. Select Settings.
3. Select Captions.
4. Select Captions Mode to On or On Always.

Now all movies and series with subtitles available will immediately play with captions.

For a specific title:

You can turn closed captions/subtitles on for a specific title by following the steps below:

1. Select and Play any title.
2. When the video begins, click on the asterisk (*) button on your Roku remote. If you have a second generation Roku or a Roku TV 5000x, an overlay with the title of the video you're watching will be displayed. If you have a newer Roku, the video player controls will be displayed and the CC button will either be orange(captions activated) or white(captions deactivated). Images below:

Second Generation Roku ("2400X": LT (2011) "2450X": LT (2012) "2500X": HD "2700X": LT (2013) "2710X": 1 / SE "2720X": 2 (2013) "3000X": 2 HD "3050X": 2 XD "3100X": 2 XS "3400X": MHL Stick "3420X": MHL Stick "3500X": HDMI Stick (2014) "3700X": Express "3710X": Express+ "5000X": TV): 

Select On to turn on captions.

Now captions will be displayed on the screen!

Newer Generation (Roku 3 (4200) Roku 3 (4230) Roku Streaming Stick (3600) Roku 4 (4400) Roku Premiere (4620) Roku Premiere+ (4630) Roku Ultra (4640)):

Press the asterisk (*) button on your remote to turn captions on:

Press the asterisk (*) button on your remote to turn captions off: