I'm having trouble linking "The Voice" which is a US Show with TV Listings. It's searching correctly for "Voice" and as I scroll through the show list I can find it, I select it, I create a link but it never seems to "link".
the problem with that show is that both the empty episode name and the appendix "(US)" on the series name caused the series/episode mapping logic in the plugin delivering no results. I've slightly adjusted that logic to fallback to the generic series information for such shows where only one series is contained in the tvdb data.
Can you try the attached version and see if it fixes the problem?