A:Answer Hi Ihaveaquestion,
Thanks for your inquiry. NextGen TV™ (ATSC 3.0) is the latest version of over-the-air antenna TV and brings several improvements over the previous ATSC 1.0 standard including better reception, up to 4K Ultra HDTV video with movie theater-quality sound, more channels, mobile viewing on the go, on-demand internet content, and more. Antenna and internet connections give you access to the full range of capabilities of the new system. While you can receive NextGen TV without being connected to the internet, if you're connected to the internet, NextGen TV will deliver an even better experience that will be enhanced over time.
The great news is that the X900H supports ATSC/NEXTGEN TV (ATSC 3.0) (available via software update).
Notes:
-Some features may not be available at release and will come with future rollouts as broadcasters extend their aerial coverage and add new features.
-The content resolution, whether it is 4K or other, is determined by the broadcaster and not by the receiving device or the TV.
Currently, the OTA broadcasts using the NextGen TV ATSC 3.0 will vary depending on your location.
Hope this helps,
-Ralph