Axiom Home Page Forums General Discussion Home Theater LCD Motion Test DVD ?

I have not looked at the other Samsung TVs yet..but I am very fond of the TOC look and the PQ on the 750 is quite amazing, to me at least, and with a price like that $2400 vs $3200 list, it's pretty much a no brainer for me.

Don't know about 60hz signals vs 120hz TVs.. It seems every manufacturer calls it something propriatery like "Adaptive Motion Assist" or whatever.. From what I have seen with my own eyes on a 450 series, turning ON the motion assist ie: 120hz, makes HD content look like it's been filmed using a camcorder.. so it's best to leave it off.. which brings us back to blurr issues etc.. but honestly, I could not detect blurr on the new Batman movie playing on the newer 750 model.

I just bought the Samsung PN50A460. While it is not 1080P it sure looks a lot better than the Sharp lcd it replaced. I would imagine the 550 would look even better, man that's hard to imagine . It also came with an 18 month warranty (exclusive to this model I believe) plus when I registered it on line Samsung gave me 3 more months on top of that, 21 months all together. Now that's not to bad imo.

And Rick is now a big fan of good warranties!

For sure, although I think the Sharp going bad was a fluke.

Cam, there's validity to what the rep said only in that there're no 120Hz transmissions, but that has nothing to do with the LCD sets that are "120Hz", so the rep isn't well-informed on the point. Those sets take the incoming 60Hz signals and insert an extra mathematically interpolated frame between the "real" ones, with the result that any motion that occurred between the actual frames is made less apparent.

What I don't get is why does " film based " movies look like camcorder shots using the "motion blurr reduction ie: 120hz" ?

I know film is 24fps as opposed to 30fsp but the motion reduction circuits should compensate for that ? Not much point in having a tv that has such a feature and yet can't use it for movies.

Rick, my buddy has the same TV you have except it's a 46inch and once he showed me some BD stuff on it I was pretty much sold on Samsung, the PQ is amazing, and the 750 I'm getting is even better, not by a large margin, but it looks really amazing.

The 850, the current top dog, has 2 new features, but it's the same guts ie: same PQ ..the new features, for me anyways, are not worth the upcharge of $1300 for the same size tv.

In its price range it was a no brainer. We watch our first dvd (upconverted to 720P) and the picture was fantastic. I can only imagine how well the picture quality on the 750 will be, nice set.

Before jumping on the 120Hz wagon, it’s sort of important to understand why it’s being touted by manufactures. It may or may not be needed, and you may or may not like it. Its primary function is to combat the Sample and Hold Effect that occurs in our brain as a result of how it interprets what your eyes are seeing with some digital display types. Here’s a pretty good short version of what this is (not my words):

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“SAH (Sample and Hold) effect is due to how the eye-brain interprets the image perceived. Since light falling in the eye retina is persistent and the brain integrates light intensity over a short period of time, a certain amount of blanking time is required between frames for the brain to easily differentiate sequential images and interpret movements. Not doing so, the brain will integrate and join 2 subsequent frames and this will be perceived as fuzziness in the image. LCD/LCOS blanking time is almost nil since pixel state is always on for the duration of the whole frame. Single chip DLPs have some blanking time but definitely not as long as 3 Chip DLP due to its color wheel that turns several round per frame and display each color twice per round. 3 Chip DLP blanking time is directly proportional to pixel brightness intensity, and knowing the average pixel IRE hover in the 30s, add gamma to the equation and we’ll get on average very long blanking times with off state mirror time. CRTs have relatively long blanking times as well (about 14ms with 60fps material assuming 2ms phosphor decay time)”

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Frame interpolation and 120Hz are two different processes. 120Hz is just another type of frame rate doubling and will have mixed results depending on the source. For 24P film, it will do no good whatsoever and most likely just introduce judder. For 60Hz video, it will make it look more fluid.

Frame interpolation is when the display’s VP inserts extra frames that it ‘believes’ to be an accurate compromise between two sequential frames. For video, this appears to be working quite well. For film, all reports so far say is looks horrible. Dark frame insertion is Sony’s. DFI is where a frame of complete black is inserted between frames to mimic what you would see with 35 MM film projection. The dark frames represent the black (no image) area of the film between frames as it rolls past the beam. DFI is getting a lot of praise, but it comes at a price of loosing contrast.

At any rate, all that rambling aside, it would be a good idea to view a display before buying it. Watch film and video sources and see what you think. Some folks hate it, others love it.

DLP does not need any of these processes, but it’s not without its warts either.

The 750 is a LCD and the 460 that Rick has along with the PN58A550 that I'm eyeing are plasmas. One thing that I don't understand is that the 750 LCD and the PN58A550 plasma are virtually the same price (plasma a bit more expensive). I haven't looked at either sets, but I would assume the plasma would have a better picture, not knocking the LCD at all but I just thought that was the general consensus. Am I wrong? Can a LCD with a price tag comparable to a plasma of the same size etc. look better??