It would be nice if this were my final word about moving frame artifact-reduction using Samsung's Auto Motion Plus (AMP) but it's unlikely. I've changed my mind before
and may again. But this is the best I can do for now.
There is no such thing as an "artifact free" viewing experience on this TV (or maybe any TVs). Until the standard becomes 48fps or higher such as the new HOBBIT movies' standard on all sources (which may never happen, and some people won't want it to), we will be dealing with this issue.
The key thing to remember with AMP is that you're trading one set of artifacts for another and it all depends on which artifacts you subjectively prefer. There are also practical considerations which I'll talk about.
So we're dealing with these sources for most people on these boards I'd say:
1080i or 720i broadcasts,
video files from USB sources or media servers which will usually default to 60p with or without upscaling,
streaming video such as Netflix and DVD which usually goes to 60p,
and true 24p sources, usually blu-ray discs originated on 24p film or HD material.
The practical consideration which for me comes first is that I almost certainly do not want
to have to mess with the remote constantly while switching between sources for a tiny benefit in picture smoothness or for a certain look. That's why for a long time I experimented with using 1080i and Film Mode for all sources.
While I think Film Mode is a good thing for broadcasts, it's impossible to use well for all video sources if you force 1080i. It introduces picture drawbacks (no true 24p) and can even cause some videos to not play at all depending on their encoding (I saw this happen on Netflix and on some USB files).
So I have set my blu-ray player, the Philips BDP-3406, to Auto for resolution choice and all else follows from that. As viewing material, I chose material that had fast moving action and a lot of contrast. GAME OF THRONES, both from USB mkv and blu-ray, and the recent Batman blu-ray. I also streamed some high-quality film-originated Netflix movies. My testing is subjective - it can't really be otherwise.
My testing shows that indeed you can get a very subtle improvement in smoothness for 24p sources by switching to Custom and having it on either 0/0 or Blur Reduction 10, Judder 0, depending on your preference. Having no judder reduction means none of that dreaded "Soap Opera Effect." This also works reasonably well for DVDs and USB files or other sources. But the improvement is very subtle to my eye. So subtle that I had to stop using it.
So what's the hangup? Netflix, unfortunately, and it's something I watch a lot. I have no idea why, when this source is reported as 60p, same as a DVD or other source, but it really doesn't like the Custom setting. It acts the same way as when my player "forgets" to switch off 24p, introducing a totally unacceptable "frame jerking" effect every few seconds.Whether this is just a problem with my player (which has advantages that I picked it for, but other issues that go with it) or happens with others' too, I'd like to know.
The same issue may appear with other streaming video apps like Amazon, Hulu, Vudu etc., but I don't really have or use those much. It's just really odd how this jerking happens only with Netflix and not DVD or other sources. Netflix will only appear "right" with AMP when it's set to Clear, or is disabled entirely. (I'm not even considering the SOE settings which interpolate frames.)
While Clear in Auto Motion Plus does help reduce blur and some judder, and DOES NOT create the dreaded Netflix jerk effect, it introduces other artifacts I don't prefer. The "credits test" clearly shows this, that it's lacking some smoothness while covering over others during regular picture displays.
An idea would be the Samsung able to be programmed to switch on one AMP mode for one mode (say 60p) and another for 24p, or even for different apps.Until that happens, and since I hate switching between modes as I mentioned, there are only two generally acceptable AMP modes for all my sources: Clear or Off.
Since I see new artifacts introduced by Clear, and I prefer the artifacts already inherent in the 60p or 24p as they appear on this TV, I will try having AMP off entirely for a long time and see if that's finally what I can settle on.
For those without streaming video issues as I described, Custom settings may be the way to go. But please try these tests and let us know what you come up with. Hope I helped you and didn't confuse the issue even more...Edited by bewlaybrothers - 1/11/13 at 12:54pm