My personal opinions:
Genre:
A movie is a movie is a movie. Unless you check the credits, it's impossible to distinguish a TV movie from a similarly budgeted theatrical movie. TV genre should be used to signify a TV show or mini series, because those are very different from movies. If you want to use the genre classification for some other purpose, then you should keep it local.
Rating system:
For NR the rating system is meaningless. If it is not rated, then obviously no rating system has been used. Therefore just changing the rating system for a NR title just produces a meaningless update. Again, if you use it for something else than just indicating which rating system has been used, then you should keep it local.
To repeat, those are my personal opinions. The rules do not tell us one way or the other. |