ND (Neutral Density) Filter: A filter which reduces the amount of light coming through the camera lens, without affecting it's colour temperature. Related Info: Colour Temperature
Noddies: Shots of the presenter / interviewer nodding, smiling, frowning etc. These can be shot after the interview and inserted during post-production. More info: Noddy shots
Non-Linear: Any method of video editing which doesn't require all shots to be assembled in a linear fashion. More info: Non-linear editing
NTSC: National Television Standards Commission. Video/broadcast standard used in the USA, Canada, Japan, Mexico, and other countries. Delivers 525 horizontal lines of resolution at 30 fps (frames per second).