XMLTV / applied guide-data decisions · Primary-source explanation; no UK IPTV implementation or account test. Instructions are based on publisher guidance; a UK IPTV account was not tested on this platform.
Identify what the viewer needs
A person asking for subtitles may require translated written text, captions including sound information or a programme presented with signing. These should not be collapsed into one checkbox. Begin with the actual accessibility requirement and the specific programme edition. A general language label does not establish all three forms of access.
Read the source term correctly
The XMLTV DTD distinguishes teletext, onscreen and deaf-signed values in its subtitles structure, describing the last as in-vision signing. Preserve that meaning when mapping source data into a user interface. Do not convert the presence of deaf-signed into English captions available, or assume that every consumer uses the same display label for the source value.
Compare two hypothetical editions
Imagine one listed edition has signing visible in the picture while another supplies selectable written captions. The first may meet one viewer’s need and the second another’s. Switching a caption font preference does not create the alternative edition. Confirm what the actual legitimate player provides and whether the selected edition contains the required presentation.
Report the specific mismatch
If the guide badge and programme differ, provide the exact guide entry, edition and observed controls to the responsible publisher or player maintainer. Keep spoken language, written language and signing as separate observations. This article explains the DTD’s terminology; it reports no UK IPTV accessibility verification or guarantee that a label establishes a usable delivered feature.