There is only one file type that uses the .JTV extension:
JRiver TV File
Video recording created by JRiver Media Center, a multimedia playback and online streaming application; stores captured video such as Internet television programs; saved in a proprietary format, which can be played back in Media Center.
JTV files are used in a manner similar to recordings on a DVR device. Users can automatically record TV shows and then watch them later.
|JRiver Media Center||Freeware|
Updated: June 27, 2015