I am sure that a few of you are wondering about running TV service from a Home Theatre PC (HTPC) to an Xbox One (X1). So I thought I would share how what I had to do to get this to work. Forgive me if I do not get the actual screens on the Xbox One's correct. I don't remember their exact titles off hand.
1. I went into X1 settings page and under TV (I think) and disabled the option that Xbox turns off power of my "cable box"
2. Under the initial TV setup screen (separate screen from step one above) I used "Media Center PC" (just typed media when asked what was the brand), in addition to setting up my cable provider, etc etc. Please NOTE that I have a Media Center IR Blaster connected to the computer, so I am not sure if this is required or not. I would assume it is otherwise you will have to just use your normal WMC remote or keyboard/mouse to change channels).
3. Allowed it to run the "power test" even though nothing would happen. Said it "worked' and moved on. (Notice nothing ever showed up in the little TV preview area on the right hand side of this particular screen so wasn't really worried).
4. Launched the X1 TV app and saw my HTPC desktop. I could control the desktop environment with my mouse and keyboard.
5. Launched Windows Media Center (WMC) and it launched. I used X1 to change channels. Even in just the default WMC screen it sent the command to change channels based on the integrated X1 guide (not the Media center guide).
6. The image was just slightly degraded (probably due to the HDMI pass-through), but not very noticeable. However this method was much more responsive then using a traditional media center extender (I also have a Ceton which is horrendously slow). it seems even snappier than the 360's media center extender). I assume this is attributed to direct HDMI connection vs. Ethernet.
7. The only issue I experienced was NO SOUND. So I actually switched to the HDMI cable that came with the X1 for the HTPC to the X1 and rebooted the HTPC. Then I had to go into the audio playback devices (right click on speaker icon in Windows) and manually select my HDMI source which, for me, was AMD. For some reason it was disabled. So I re-enabled it and set it to default and tested it by adjusting the sound volume and heard the windows ding.
8. With the sound working and the Xbox guide capable of changing channels, it seems to be all working fine. If you get an error about "video display playback" or a DRM issue, just reboot the system while the X1 TV app is active. That way it gets a solid HDMI handshake.
Just so you guys know, I am using a Silicondust HDHomerun Prime into an HTPC. Maybe there will be HDHomerun Prime support in the future with Xbox One. But at least for the time being I can use the Xbox TV with my HTPC and Windows Media Center.