tried playing a video from USB. it worked but had screen description voice overlayed. this option in settings shows disabled. I played a different file and I don't have it. the other selectable languages don't seem to have it. I play the file on pc vlc player, and there is no way to get the voice-over.
@8rager: This sounds like an issue with the video files itself, as Audio Description on the TV itself only works with broadcasts that support the feature (Settings > General > Accessibility > Audio Description Settings). Try checking the folder for the affected video on your PC to see if there are any audio description files included, and delete them accordingly.