[sualfred]

It would be possible, but will take long tasks. Except for IMDb ratings if ID is available in the uniqueids.

easy:
> if imdb -> call omdb -> rating is ok

pita and spaghetti code:
-> if imdb or tvdb available-> get tmdb of show + episode by id -> query tmdb by tvshow id, season and episode -> compare found data if it matches local imdb/tvdb id
-> if tmdb available -> get tmdb of show -> if not available try to get the tmdb by tmdb by imdb/tvdb -> query tmdb by tvshow id, season and episode -> compare found data if it matches local tmdb id -> if imdb was not available but found -> omdb -> imdb rating