I will take your last question first where you said:-
Also not all of the names show when you go to the DTV menu. You have to page backwards and forwards to refresh the page to get the programme names to show.
My Comment:-
This is a known problem and reported to B&O shortly after the DVB-T module was released, but to date it has not been resolved or acknowledged.
Your first problem is a different story and is less likely to be anything to do with the DVB-T module fitted to both of your TV's and is NOT a problem I have seen which I check this morning and it works correctly on my AVANT.
The time for the EPG is not synchronised with the TV time, it is transmitted with the digital signal and decoded by the DVB-T and so to check this point I would get a Freeview STB and connect it to your aerial and view its EPG timings using the STB EPG and if you have the same problem, then the time is being transmitted incorrectly from your local transmitter