DVR Channels in New Zealand

I have a HD HomeRun box and a Plex server running on my Synology NAS at v1.7.3.3937
Under the DVR Setting I see
2 tuners
31 channels—1 enabled

I cannot enable more than 1 as there is only 1 option in the drop down box beside each of the 31 channels.
As a comparison my brother who lives in the UK can see many more channel but can also see a drop down for each of those channels and hence can see more than 1 live channel to view.

Anyone have a similar experience ?