managed to get this a bit further. I took advice from this thread:
deleted the epg data, and reinstalled the DVR, with multiple stops and restarts of the plex sever along the way.
It initially I was excited it would work, as the signal for the stations found were 5 now and previously were 4. The duplicate channel listings has gone, there is only 1 number 1, if that makes sense.
However on trying to play the first channel, BBC 1 it just hung. The initial background image came up, but nothing else. On selecting different channels it seems to warm up, but still lots of spinning circles and hanging.
We will see how the recording goes.
