Actually we are not able to lock any tuner. For certain tuners (HDHomeRun Prime, for CableCARD) we are able to detect whether the tuner is being used by other apps, and thus can avoid conflicts. I don't know if other apps can do the same. I also have the impression that HDHomeRun tuners can internally manage that, using available tuners for different apps. Devices made by other manufacturers may not be as flexible.
Thanks. So, for now, I let NextPVR continue to do the recording and own the tuner devices. NextPVR has no issue with recording. The problems I have with it are all playback related, specifically lip-sync issues, and performance problems. Things used to work fine, but there have been many regressions recently, and it's not possible to reinstall older versions due to the online-only installer.
So, I setup MC to auto-import the video folder that NextPVR records to. I can play the programs fine, and the rendering is much better with Red October HQ. MC switches to the proper video mode on the projector, which is better. I tried JRVR also. It is good, but there is some video stuttering, so I'm sticking with MadVR for the time being. I'm sure JRVR will improve.
The one playback issue I have run into with MC28 with playback is with closed captions. I simply cannot get closed captions to turn on automatically when I start the playback of a TS file from the video library. I always have to use my wireless keyboard/mouse, right-click to get the menu, get to the subtitle context menu, and enable "Closed captions 1".
This is not possible to do from my IR remote, unfortunately. I don't want to pull out the wireless keyboard/trackball just to watch TV. I want to use Theater view with the remote.
I have checked the settings menu. "Closed caption" is enabled under Television / Display.
Under Video / Subtitles and language, I also have subtitles set to "Always show subtitles" and Default subtitle language to "English". I have tried various combinations of settings, turning closed captions off, or turning subtitles off, figuring they might conflict with each other. But nothing I have tried works. Whenever I play a .TS file from my local video library, I am forced to enabled closed captions manually. Is there a workaround or fix for this ?
One workaround would be a hotkey combination. The ancient iMon remote software in my HTPC lets me assign key combinations to IR signals. This would let me add an entry on the remote screen to turn subtitles/captions or off. It would still be a manual step, but at least I wouldn't have to use the keyboard/mouse to do it. Unfortunately, I didn't see any hotkey combination listed for caption/subtitles at
https://wiki.jriver.com/index.php/Keyboard_Hot-keys.
Any help would be greatly appreciated.