Yeah the MythTV box here is headless and in the basement rack. The XBMC boxes all stream live video fine from the MythTV box. I have multiple HDHomerun boxes, Nexus Satellite tuner card and an older analog card connected to the MythTV box. I did it mostly to see if it would work rather than watching television (if that makes sense?) I have inhouse NTSC channels rebroadcast for XBMC live streaming stuff. That said its mostly for play as I do not watch much TV and prefer to watch movies and today its all streaming movies (I quite ripping movies a few months back). I like that the MythTV box removes commercials. I was recording one TV series a while ago; then found a web site that had the entire TV series to stream in chronological order which worked better for me. I can still save what I stream live on XBMC but do not do that these days.
Let me know about doing that RPi XBMC box. I have a small LCD TV in the kitchen nook and only room for maybe an RPi there. I did run network cable to the inwall box for this. I will post a step by step in the blogs sections here as it helps me learn stuff and I reference it.
Also need to figure out a good remote pickup.
I do not understand. Yup here went to using MCE remotes for the the XBMC boxes cuz they are cheap and plentyful and work.
The Pivos running with XBMC for Linux is supposed to run circles around the RPi. The newest small footprint (tiny) intel based micro PCs also supposed to be really good for XBMC (you can find these for under a hundred but more than $50).
I just read too that overclocking the RPi to 800Mhz and using a network connection you can stream pretty well at 1080 with most current version of KODI.
Here will purchase a Pivos and another RPi to play with. The Pivos comes in a nice little case and it has the IR stuff already built in. I will need to add stuff to the RPi. (just purchased an RTC clock for current RPi and it works well).
There is a bunch of stuff for Amazon's FireTV (rooted et al).
Personally here will look for the fastest STB (best ARM and memory in a nice box) that I can put Linux on in a nice little box and concurrently do the RPi thing.
Found this article this morning. My efforts though relate to running pure XBMC on linux rather than on Android.
http://lifehacker.com/whats-the-best-set-top-box-1586233576
Like this one called the Neo Mini 7