i was recently at bestbuy and i was looking at this samsung model. they had it demoing this technology but the motion seemed too fast during fast scenes, as if the speed was going 1x or 2x speed. my question is could this be adjusted and how would you do this? or is this something that only lcds can do?

Did they possibly have a special fast posibly 2X demo that was being used to demonsttrate the smoothness of the movement at high speeds.
120HZ does not speed up the source of the content being received.

It's a weird effect... I'm not sure what you asking to adjust?
There are some setting on most of the 120hz displays, that change things up a little.

I know two people with the 120hz displays and just a few days in, niether one of them liked the effect at all with it.

From what I've seen, the 120Hz issue only makes LCDs look different (and I don't think it's 120Hz per se, it's that combined with some kind of frame interpolation software effect; I think Samsung calls it "AMP" on their LCD sets) - for DLP sets (like the HL61A750 and my HLT5687) achieve the 120Hz through wobulation, and while it might make things a little clearer in terms of motion blur than 60Hz, I think it is a feature that most people don't notice and/or can't use (yet) because it was touted as something needed for 3D movies and games on these sets.

Anybody else have thoughts?

EDIT: Relative to the first post, I'm wondering if it was something with the demo loop being used?

It's a weird effect... I'm not sure what you asking to adjust?
There are some setting on most of the 120hz displays, that change things up a little.

I know two people with the 120hz displays and just a few days in, niether one of them liked the effect at all with it.

Im sorry if my question is sort of confusing. i just dont like how the picture was looking when the camera would pan left and right. according to the sales person, it was running in normal speed. it just seemed as if it was going a little bit faster due to the anti motion blur feature which he explained was due to the 120 hz. i was just torn between getting this tv model or another one if that feature can not be turned off. it just seems that it would cause motion sickness. i appreciate all of the input guys :cool:

You're probably seeing the video frame rate being in the 20's and not the set...

Check the user manual for the model you are considering at the SamsungUSA Website to confirm that you can turn 129Hz refresh rate off is you want to.

My understanding was that the 120hz didn't give that funky motion but it was rather the motion smoothers used on some of the sets and that can be turned off?

Do you mean the soap opera effect on LCD TV's running 120 Hz? That is the Samsung smooth-motion processor that makes movement look silky smooth. The DLP shouldn't have any of these issues as they don't have motion problems like LCD sets.