Hey,
I'm using LibreELEC 8.2.0.1 on Raspberry 2 and Raspberry 3 with ArgusTV PVR Client 2.5.6.1 . After starting live TV the stream first works fine but then stops working after a few seconds, its seems to be buffering but the stream never comes back.
Logfiles until this Point: 1_log-2017-11-03-15.53.25 – Google Drive
When I stop the stream by pressing "stop", the PVR Manager starts to import the available channels from PVR Plugins again. Because logfiles got quite big until this point, i uploaded them sepearately: 2_log-2017-11-03-15.53.25 – Google Drive
On LibreElec 8.0.2 with ArgusTV Client 2.5.6.1 everything works fine, this is the last Version of LibreELEC I got it working. With Kodi 17.5 installations on PC ArgusTV works fine, too.
It does not matter if i update LibreELEC 8.0.2 to 8.2.0.1 or installing a "fresh" 8.2.0.1...
I'm looking forward for your ideas 
yours, muffin