In vision signing involves translating a programme's dialogue into British Sign Language (BSL). Sign language is a visual language with a unique syntax having its own independent grammar and vocabulary.
An interpreter, whose image is superimposed on the broadcasted programme, carries out that work.
The service is aimed at deaf people, for an audience mainly based in Wales, or those able to access S4C on the Sky platform outside Wales.
As a viewer you don't have to do anything different, as the signing is available to all viewers.
Signed programmes are normally shown at weekends or you can watch online.
For further information, contact the S4C Viewers Hotline on 0870 600 4141, or e-mail us