How to find a signed version on BBC iPlayer
Search for the programme’s sign-language version and verify that it plays on your device.
IPTVBlogs editorial desk · 
If you need sign-language interpretation, look for the programme's signed edition. Subtitles, audio description and sign language serve different viewing needs. For a particular episode, use the BBC accessibility guidance and test the version on the device you plan to use.
Check the edition before starting the programme
Search by title and episode. Compare the title card and the accessibility details for each available version. If the episode has a separate signed edition, open that entry and verify that it displays the interpreter during playback.
Report the exact missing edition
Write down the programme name, episode and device if you can find a signed listing on the web but not on your television. Keep any expiry shown on the episode page. That information helps identify whether the available version or the app interface changed.