The Scribe 4K has both ATSC 1.0 and ATSC 3.0 tuners.
Over the air broadcasts in the US currently use the ATSC 1.0 standard. Audio is encoded as Dolby Digital AC-3. Plex supports these broadcasts.
Some TV stations are also broadcasting using the ATSC 3.0 standard. Audio is encoded as Dolby Digital AC-4.
Plex does not yet support the AC-4 audio format. Therefore, if you play a recording with AC-4 audio it will have no sound. This caught many people off-guard when ATSC 3.0 tuners first became available. The last post I saw on the topic said Plex and Dolby legal teams are working on the licensing details.
Stations must maintain their ATSC 1.0 broadcasts even if they broadcast an ATSC 3.0 signal. You won’t be missing any content by using the ATSC 1.0 tuners.
ATSC.org lists Santa Barbara as a ATSC 3.0 market, which is why I mentioned it.
