I have an SA 8300 HD DVR from Charter Cable. The problem is that I cannot get captions to display on TV when using HDMI input. Captions will display OK with TV input set at "TV". When I change input to HDMI, I lose the captions. The TV is a Vizio SV470XVT though I understand that captions are decoded by 8300 and not the TV.
Does anyone know what I should do?