Installation of XMLTV GUI is straight forward
Assuming you take all the defaults you should have an icon on the desktop and on clicking on it
You will be presented with the opening screen then click on tools; settings and we have...

XMLTV GUI this grabs the tv program data

None of the ‘XML’; ‘Logging’ or ‘ConnectionOptions’ tabs need to be changed.
Click on the ‘Grabbers’ tab