Turn captions on for the current video
Knowledge’s help says to move the pointer over the bottom-right area of the video player and use the Closed Captions icon when controls appear. This is the immediate control while watching on a computer. It gives a direct way to check the supplied text in a spoken passage before assuming the absence of a continuously visible toolbar means the video has no caption function.
Set the mobile default separately
For iOS and Android phones or tablets, Knowledge places a persistent caption choice under the Account icon at the bottom, Settings and Closed Captions. Enable that toggle when the intended preference is for captions to start automatically on programmes. Use that documented account/settings route instead of expecting a one-video browser toggle to describe every other application’s default state.
Use the browser’s caption and replay keys
Knowledge’s computer shortcuts include C for captions, J for ten seconds back and L for ten seconds forward. Space or K controls play/pause; F enters full screen and Escape leaves it. These shortcuts are specifically documented for the Knowledge video player in a web browser. They should not be assigned automatically to the television remote or another broadcaster’s application.
Check the same passage after the change
For a difficult line, pause, enable the text and use the documented ten-second backwards step to hear the passage again. Then resume and compare the caption with the speech. If the issue is the mobile default, return to the mobile setting rather than repeatedly toggling captions on an unrelated browser session.