Video metadata in iTunes - cannot change to video

[Patricklove]

I have some episodes of the office that I'm trying to add into iTunes. I used handbrake to rip them. When I add them in, they are by default set to the video type movie. When I try to manually, without another application/script, change the video type, the change video type option is grayed out. Doug's video type script gave me the dialogue box "Done", without changing the video type. Parsley is atomically delicious won't go so far as to give me a progress bar, it just freezes when I try to alter the video file metadata. I downloaded MetaX, which gives me a "zero byte file warning", telling me that "Writing to this file with MetaX would have resulted in data loss. The write was aborted and your file is unchanged". Anyone have any ideas, short of me re-ripping the DVDs, or converting them? I have an Apple TV, which would really be annoying if all these was designated as movie files.