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Inserts movie ratings from tmdb into trakt. credits to
Add tmdb rating to trakt.tv
Credits go to http://greasyfork.icu/de/scripts/9613-trakt-tv-add-imdb-rottentomatoes-movie-ratings-and-sorting-options-for-ratings which only works with a (paid) omdb api key.
I modified the code to only load the tmdb rating.
In the script code you need to replace "yourapiKey" with your (free) api key.