Equipment: 40" Samsung UN40D6000 LED HDTV 120Hz 1080P - software all uptodate. AppleTV 2 software all uptodate. Basic cable (SD) and HD content while watching television is solid, fluid and vibrant. However when using the AppleTV playback is stutter/jittery every few moments and the content is all standard definition. Both form iTunes rentals, streaming from an iTunes library and netflix. and its not a streaming issue as I have another bottom of the barrel HDTV 1080p set with an ATV2 and it streams the content just fine no issues. (it performs the jitter/stutter/ when plugging it into the Samsung LEDTV) I disabled Auto Motion Plus feature of the set and did no justification or stopped the jitter during playback. When I put the setting on Game Mode it played back just fine as per usual, however adjusting the color quality, picture qualiy etc is disabled and am not getting the full advantage of the LEDHDTV Anyone experience this before? I've browsed through some of the posts and seems alot of complications between some ATV2's and Samsung TV's.