I used to love doing that as a kidit's how I learned about various inputs at a young age! Does the Xbox need to be switched on to use the HDMI pass-thru feature?
What are the benefits though? Surround receivers and TVs have multiple HDMI inputs and splitters are only a few £ and don't add any lag.
What I love about my PS3 is that everything (TV, amp, PS3) can be operated by my TV remote control. I don't think it's possible with the PS4, oddly enough.
PS4 can be controlled via TV Remote if your TV supports Simple Link.
Re: Xbox one,
Benefit is this. I walk into my room. I say Xbox On. It starts up not only my Xbox, but my TV and my Satellite Box.
I have had to pick up no remote, and yet I'm into my TV. Want to watch BBC 1 I just say it. It is smart enough to hide SD channels and give me the HD channel. Simply say pause and ot pauses, ask record and it records TV.. Had enough watching TV, don't have to pick up any remote simple 'Xbox Turn Off' and 'Yes' to confirm and I've not once had it felt a need to pick up the remote or change either input or channel manually.
I find it very convenient...
However. For me the mist convenient thing with Xbox one over PS4 is not voice commands or HDMI input, but 'Instant Resume' of game.
I find it great to be playing a game, have to go our in the middle of a mission and I can simply turn off my console without thinking of losing progress or needing to spend few minutes getting to a check point.
When I come back in. I can turn on my Xbox and resume the game straight away, without loading screens, without having to restart the level or game etc. Its fantastically convenient and that feature is the one I most wish my PS4 had ..