I bought a UHD TV and no digital channels will appear. I've re tuned it multiple times and still nothing. When I retune it, it says
Samsung tv plus -56
Does anyone know how to fix this or know how do I get the normal TV channels like 1,2,3,4.... the only channels coming up are numbered from 4000
No channels at all means you have an issue with receiving terrestrial broadcasts. Check your Ariel and connection. Indoor ariels are often not good enough for digital broadcasts.
The Samsung plus channels you are receiving are data channels coming via your internet connection.