iTunes

I'm hoping that someone can help me. I've just converted all my music video clips to view on apple tv (MP4 format). Automatically they were then put in the video's category in iTunes. In apple tv under the music category there is a music video category. How do i either, move my music videos to this category to prevent searching through hundreds of videos for actual movies, or recategorise them to accomplish the same end result?
Thanking you in advance, The Yak

Select the music videos and select Get info by right clicking or using the cmd i shortcut.

In the options tab select music video as the media kind