It's interesting that you can actually play an offical disc on your PC monitor and TV concurrently using powerdvd.
The blu-ray disc contains HDCP protection, and powerdvd comply with the HDCP protection as well.
Theoretically, you cannot play the video on 2 monitors concurrently.
It seems you used some adatper in the middle to connect your TV to PC?
Or, you used a DRM decryptor?
I'm afraid that your playback setup and condition will not be invesitgated by cyberlink because it infringed the HDCP DRM setup.
Try play the movie on your TV only.
And, there will be no synchronization issues as there is no comparison basis.
This message was edited 2 times. Last update was at Dec 01. 2021 02:45