2016-10-11, 18:16
Yes, to rescrape the whole database you might as well just delete it and start again!
You can use the texturecache.py imdb option (for movies and tvshows), or the add-on. The obvious advantage of the former is that it's easier to script, but both should be doing similar things (I guess - I've never looked at or used the add-on so don't really know where it get it's data from, or how accurate it is). I know for sure that the texturecache.py version will only update the imdb values in the database and won't touch any local NFO files.
You can use the texturecache.py imdb option (for movies and tvshows), or the add-on. The obvious advantage of the former is that it's easier to script, but both should be doing similar things (I guess - I've never looked at or used the add-on so don't really know where it get it's data from, or how accurate it is). I know for sure that the texturecache.py version will only update the imdb values in the database and won't touch any local NFO files.