I've actually got Freeview in the list now, but I had to cut back the postcode to only the first 3 characters.
Perhaps this is something that Luke or @ebr can look at, as putting the full postcode in, doesn't give all of the options there should be.
@Luke / @ebr - the setup for FreeView channels in Emby server needs to be reviewed, or at least the help needs amending.
As I said above, it you put the full UK postcode, nothing is found, so I had to reduce it one character at a time until just the first 3 (of 7/8) characters of my postcode worked.
I'm not sure what routines you are using to discover the various FreeView regions against the postcode entered, and I guess It may be difficult for you to test in the US, as you may not know enough postcodes to test against, so if you need a hand, please respond here and the UK FreeView users can assist.
This will then make it easier for new Live TV users in the UK going forward.