Hi. I just bought an HDFX-4K. I updated it to firmware version 20260326. When I run a channel scan with my setup, it detects 9 over-the-air channels. Looks like five ATSC 1.0 channels and four ATSC 3.0 ones. The ATSC3 ones are:

128.4 VS1-4K
128.5 VS1-FHD
128.7 VS1-HD
128.8 VS1-SD


I'm using ...