XBian/XBMC with PVR/TVHeadend experiences.

[calavera]

I can confirm everything what dezi writes. Fresh raspberry, fresh xbian install, mpeg 2 license ok, headless raspberry with tvheadend, smooth playback on other computers, but most of the time I don't get any image at all when changing channels on raspberry and when I get it, it's square ratio regardles of which ratio the stream really has - sometime the image is cropped and other time image is resized, which is weird. I don't get that much stuttering, but sometimes also.