I am not entirely sure my issue is identical to this issue but I didnt want to open another thread about channels not playing in Kodi 17.6.
I recently updated TVHE to version 4.3-1213~g3ea69fe on Debian 8, since I updated the TVHE live channels will no longer play I can record the channel and watch the playback but no channel either SD or HS will play in Live tv. The channels will play in the TVHE interface though.
The error in the Kodi log is
21:36:45.306 T:8636 NOTICE: VideoPlayer::OpenFile: pvr://channels/tv/All channels/pvr.hts_1492316640.pvr
21:36:45.333 T:10132 NOTICE: Creating InputStream
21:36:45.340 T:10132 NOTICE: Creating Demuxer
21:36:45.439 T:8636 WARNING: CGUIWindowManager - CGUIWindowManager::HandleAction - ignoring action 107, because topmost modal dialog closing animation is running
21:36:53.776 T:528 WARNING: XFILE::CFileFactory::CreateLoader - unsupported protocol(pvr) in pvr://channels/tv/All channels/pvr.hts_1492316640.tbn
21:36:53.776 T:528 WARNING: XFILE::CFileFactory::CreateLoader - unsupported protocol(pvr) in pvr://channels/tv/All channels/pvr.hts_613327377.tbn
21:36:53.776 T:528 WARNING: XFILE::CFileFactory::CreateLoader - unsupported protocol(pvr) in pvr://channels/tv/All channels/pvr.hts_1682004640.tbn
21:36:53.776 T:528 WARNING: XFILE::CFileFactory::CreateLoader - unsupported protocol(pvr) in pvr://channels/tv/All channels/pvr.hts_1777823802.tbn
21:36:53.776 T:528 WARNING: XFILE::CFileFactory::CreateLoader - unsupported protocol(pvr) in pvr://channels/tv/All channels/pvr.hts_1000782094.tbn
21:36:53.776 T:528 WARNING: XFILE::CFileFactory::CreateLoader - unsupported protocol(pvr) in pvr://channels/tv/All channels/pvr.hts_227299983.tbn
21:36:53.777 T:528 WARNING: XFILE::CFileFactory::CreateLoader - unsupported protocol(pvr) in pvr://channels/tv/All channels/pvr.hts_451790238.tbn
21:36:53.777 T:528 WARNING: XFILE::CFileFactory::CreateLoader - unsupported protocol(pvr) in pvr://channels/tv/All channels/pvr.hts_1730088412.tbn