https://apps.fcc.gov/edocs_public/attac ... 7803A1.pdf
Since all existing TV's will need a converter box to get OTA ATSC 3.0, the race will be on to see who can provide the first combined streaming/ATSC 3.0 box. I hope Roku is listening and commits to develop a Roku ATSC 3.0 box. Although the rollout of local ATSC 3.0 broadcast may be slow, I can see a huge demand for early adopters. Looks like this may be a reason to hold off on buying a 4K TV until the TV tuner is upgraded to include the new ATSC 3.0 standard.