The "Refresh EPG" button on the "Manual Control" panel works if you enable "grabbing while idle". Your screen shot shows that idle grabbing is disabled, so "Refresh EPG" will do nothing.I have gone through the set up again for the epg grabber as per the instructions on the page sent, how long should it take to start propagating the data? I have had ITV on for 10 minutes but nothing is showing.
When you click "Refresh EPG", all of the EPG-related timeouts expire, and the grabber performs whatever actions are defined on the "DVB EPG" panel. So if only "grab while timeshifting/recording" is enabled, nothing happens if you are not watching or recording a TV or radio programme.
I don't think that this is stated explicitly in the Wiki, so I will correct that.
-- from CyberSimian in the UK