Works fine on my two HR23-700's and H21-200. All series recordings showing up and absolutely no glitches in HD video playback. I have a Gigabit hard wired network to all units.
I just moved to Directv mainly for NFL. Love the MRV.....can watch DVR content in other rooms in full HD....I couldn't do that on Dish.
Got to say the guide is no where near as user friendly though.
