Advertisements Small annoyance with the TiVo HD box. Video is always played with Dolby Digital mode, but interaction with the UI menus is done in Pro Logic mode. Depending on the audio receiver that's connected, there can be a bit of a delay when flipping from one mode to another. Also, the UI trick sounds aren't played at all when the unit is in DD mode, so it's difficult to tell when FF/RW actions are queued up. I guess the suggestion here is to provide an option to keep the unit in DD mode full-time (kind of like the option to always output video in the user's chosen HD mode), and play the UI sounds in all modes.