Hire a new development team
It's pretty clear the current teams responsible for all of these app developments are failing miserably at their job. These apps have been broken for years. In the instance of AppleTV the new app updates did nothing to address the real issues people have been complaining about on this forum. I'm proposing a WILD idea of letting this incompetent department go, and outsourcing to an agency that's actually capable.
The reality is this isn't difficult work, in fact it's VERY straight forward stuff.
UX design is SIMPLE.
Coding is SIMPLE.
Adhering to device architecture is SIMPLE.
Letting go of incompetent workers is SIMPLE.
With the right teams all of these issues could be solved within a few weeks time. I work with several agencies that are more than capable of doing this work and I can even put you in contact with them.