Here what you would have to do is download the subtitle, then upload the file. Many videoplayers let you do this, the first one that comes to mind is openload, which gives you an options to load subtitles either from a url or a file. So:
1) Find the subtitles you want here.
3) Find a version of the show/film on openload.
4) Select upload from file.
If the timing is out, you can use sites like http://subshifter.bitsnbites.eu/
to make adjustments