Sadly it doesn't. Just shows the YoutubeTV home screen. Onn device.
It works fine with the origional HDMI turner on my PC with using this...
c:\platform-tools\adb -s %ip% shell am start -a android.intent.action.VIEW -n com.haystack.android/.tv.ui.activities.LoadingActivity
I'm happy to just devote the 4th encoder on my URayCoder to the more manual loading of unsupported apps. As long as ADBTuner only knows about the first 3 encoders, and the PC HDMI4C only knows about the 4th there shouldn't be any conflicts. I am going to have to do that with the Weather Channel app anyway to bypass an annoying prompt that comes up when there is a special weather event going on.