Not sure how it is on the Roku devices, but at least so far, for me, watching on the Apple TV is almost too irritating to sit through. More often than not, the stream either freezes or jumps far in advance of the audio and then freezes until the audio catches up. Backing out of the full screen display to the channel guide can usually break it loose for a little bit, but it never seems to last very long before it is hung up again. Anyone else have this issue?