Founded by Jim Stovall, the Narrative Television Network
makes television, movies, and educational programming accessible to millions of blind and visually impaired people by unobtrusively adding the voice of a narrator
to the existing soundtrack.

See samples below with and without NTN’s narration.

Film clip from The Ultimate Gift as it would be experienced by millions of blind and visually impaired people without NTN:

The same clip with narration produced by NTN which has been enjoyed by millions around the world on TV and Fox Home Video: