Hi, I am having serious difficulties exporting the caption for the Broadcast television channel. They said the caption format needs to be CEA-608 or DTV-608 required. CEA-708 and DTV-708 are optional. So that they can turn it off or turn it on at the time of preview.
But I need to know, How can I export my caption with the media with these formats so that they can get the turn on and off option.