Hi, I bought a new TV a few months ago, and set up the apps and wifi to work, but couldn’t get the terrestrial/Freeview TV to work. It is just finding 128 Samsung channels, 0 digital TV channels, 0 radio etc.

It is a UE32T5300CKXXU

The manual tune option is greyed out. I have run autotune about 30 times predominately with the settings as a terrestrial aerial and digital channel type, but I have tried all variations. I have a wall aerial, but I assumed it was broken (new house!) but having bought another aerial it is still doing exactly the same thing - 0 channels. 

I have tried a force reset of the TV and it is still finding nothing. 
We are 1.1 miles or so from the nearest broadcasting tower. 
What can I try next? 
Thanks for reading