In the categories section of the "Videos - Reels" page is there a way to add a "miscellanies" category? Some of my stuff that I would like to put up doesn't belong in any of the categories such as Trailer, Demo Reel, etc.
There is a television show category with a sub category of Episode Promo which seems to fit what you're speaking of. Look at the other details under the television show category for other options like this.
It will be added once there are a few active videos that are using that category. Usually things are pretty slow taking off, we just added this category a few weeks ago. If you added a few good ones, I'm sure we'd turn it on =)
"This video is not for a TV show, it was placed in the TV category due to a lack of a better place to put it."
The TV category is not a catch all. If the video is for a TV show or is a TV show then you can put the video there. If the video is a trailer of some kind put it in that category. If you need a catch all category use the support or feedback category.