Here's in short what it actually does:
Quote:1. Scrape using the user selected scraper and the url found in nfo
2. If it fails, all other nfo enabled scrapers of same language will be tried
3. If still no match, the default one will be used
In your case the default one is the same as the selected one (tmdb).. in that case it will fallback to "just querying" the site without using the url nfo again.
Ah.. and right, the IMDb scraper one is another discussion