PVR issue is fixed with 1.0.9 release
Thanks for the thumbs up.
As far as I can tell the audio is still delayed in Kodi in the latest 1.09 firmware, i.e. the same 100-200ms advance offset rule as above applies. Depending on who you ask this is also known as the audio sync or lip sync problem.
Surprised they included 15.2 RC when there are newer versions of custom Kodi 15.2 for Rockchip SoC's.