DWP's Disability Poligy which has subtitles and BSL translation.
http://m.youtube.com/?reason=8&rdm=9366#/watch?v=VmYyqp0dUoM&desktop_uri=%2Fwatch%3Fv%3DVmYyqp0dUoM
http://m.youtube.com/?reason=8&rdm=9366#/watch?v=VmYyqp0dUoM&desktop_uri=%2Fwatch%3Fv%3DVmYyqp0dUoM