Open the PBS app and navigate to a video you want to watch. Begin playing the video.
Press the menu button on your Amazon remote to bring up the video player. Press the down arrow on your remote to navigate to the CC option beneath the video player. Select the CC option.
A menu will appear in the bottom right of your TV screen. Select the option for English to turn CC on. Select the Off option if you wish to turn CC off.
Press the menu button again to return to the video.