We are viewing with aerial and the HD does not work on anything. I do not know what definition it drops to.
There is no display it just sys channel unavailable when we try to get HD
We can watch BBc1 with no problem try 101 which is the HD channel an d it says invalid channel. This all. worked fine until a few days ago. This also applies to BBC2 and ITV
Sorry no luck just the same response "invalid channel"