http://www.imdb.com/help/show_leaf?videogames

This is the meaning of those special attributes:

* (TV) = made for TV (TV-movies, MOWs, pilots, TV specials)
* (V) = made for video or direct-to-video release
* (VG) = video game
* (mini) = television miniseries

Also, the title of TV series and miniseries are surrounded by quote marks (").