Apparently ATSC 3.0 will allow for multiple audio streams: https://www.cnet.com/news/atsc-3-0-what-you-need-to-know-about-the-future-of-broadcast-television/ ht

Apparently ATSC 3.0 will allow for multiple audio streams: https://www.cnet.com/news/atsc-3-0-what-you-need-to-know-about-the-future-of-broadcast-television/ https://www.cnet.com/news/atsc-3-0-what-you-need-to-know-abo....