The 976 have an HDMI input switch and a *very* basic menu generator. Having characters superimposed over live video is another thing altoghether. That require a video processor, which the 976 doesn't have. So I'm pretty sure you can forget about this function being added thru a firmware update. Tha 976 was never marketed as a video processing beast.
Edited by Deromax (01/12/18 12:13 PM)