Nonlinear - A term in regard to editing and storage of audio, video and other data.  Data can be brought up from the media (such as a CD or computer disk) without having to know physically where it was entered onto that media.

Nonlinear Programming - (Nonlinear TV) - (Non-linear, 24-by-7 Linear Channels) - Advanced, non-traditional ways of presenting television programming.  In many ways the opposite of appointment-based television. Many consider video on demand and other forms of interactive TV nonlinear. See Linear TV

Nonlinear Editing - Not having to edit the program to keep the continuity of the program intact, thus if you change one part of the program or story, it won't effect the next part of that program or story.

Nonlinear Networks - TV networks, such as video on demand and Internet TV networks that don't offer the traditional appointment-based TV.