I solved this issue by rolling both my servers back to 1.13.7.5369 (have 1 server running a HDHR Prime for cable channels and another running a Hauppauge WinTV-quadHD for my OTA antenna. I run both just in case one or the other goes down/I decide to cancel cable subscription). The DVR functionality is now working property. Just roll PLEX back to version 1.13.7.5369, see: I need to rollback from the latest Plex update
