There is an assumption I have... the BACK and MENU keys are definitely two different inputs.
When in TV listing Matrix:
Pressing BACK when a future show is selected then snap back to present time slot.
All other places where BACK can be used:
If BACK would invoke the MENU then allow an alternate action via a user pre-configuration:
- Live TV (Small note on PiP... ‘Live TV’ would restore to full-screen)
- Default (what it does now)
So what are the chances?