Xbox not turning on off tv though hdmi or it blaster

to turn the tv on and off uses the ir blaster function, if that has stopped working then you may need to retrain it, all the xbox's in my house still work fine with turning the tv on and off viaa the IR blaster.

I guess you have your tivo plugged into your xbox and the apple tv is plugged into your tv. I guess one remote for that is not so bad

I have turned the option off to turn my tv and hdmi controller off when the xbox is turned off, but when i turn it on, it turns my HDMI, tivo and tv on volume and channel controls all work fine with voice and smartglass. My Mrs can even browse tv channels
and whats on now/next without disturbing my tv viewing.

Randver is not completely correct as the xbox does control your tv/sound center etc through the IR blaster which does not require control through devices plugged directly into the xbox, but he is correct that you cant control them unless it's setup with
the one.

Odd cause mine only turns the TV on when it's not on, but doesn't turn the tv off. But my HDMI goes to my receiver, then the recievers HDMI goes to the TV and it still somehow manages to turn the tv on when everything is off. But it wont turn on/off the
receiver. It did turn the cable box on and off though. And my receiver doesn't have a Passthrough in it either. Kinda odd really.

The correct setting for TV/Audio/Cable device power options is under Settings > TV & OneGuide > Device Control

But the above response os correct, the Xbox can turn on your TV, not the other way around. We need step by step what you do to turn on your TV to fully diagnose this...

For example;

1. Push Power button on TV remote.

2. TV turns on.

3. Xbox lights up and powers on.

Though this is virtually impossible at this point because Xbox refuse to give HDMI-CEC and rely on the IR blaster.

Yes I am part of the update testers, but that was not causing the issue. My TV came with an external IR blaster that you would plug into it, capable of turning on all my devices (just like the xbox). Well I guess when I would turn on my xbox, the signal
was sent to all my devices (TV, Cable Box & Sound Bar), as well as the external IR blaster. so everything would turn on from the xbox, and when the external IR blaster got the signal it would send out a second signal, but it would only turn off the cable box.
I guess it wasn't strong enough for the TV, sound bar or to actually turn the xbox back off haha. O well the problem is resolved, I have unplugged the external IR blaster.