Thanks for that info and choosing the Apple Support Communities. Based on what you stated, it seems you are having issues with the TV app on your iPad opening to a white screen. If you haven't already, please force close the TV app and restart your iPad as the shut down and start up process is important to keep the iOS software running properly. iOS clears cached data and does other system optimizations when you turn your device off and on.
Force an app to close on your iPhone, iPad, or iPod touch
Restart your iPhone, iPad, or iPod touch
Cheers!