Hz ratings - do they really make a difference above 120hz? - AVS Forum
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post #1 of 13 Old 03-14-2013, 07:19 AM - Thread Starter
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So do Hz ratings really make any difference..

From what I have read, the hz rating is very important when watching sport. The problem today is that TV manufaturers are quoting "real motion" or some made up name they have rather than true native hz rates. From what I have been told, this is more important as you increase the size of your TV.
I looked at the Sharp 640u in BB and it was absolutely horrible when they had a football game on., the ball was pixelated and all in all a very bad picture.
The 240hz Sharp 847 that I saw in another store looked much better and a 600hz top pf the range Panasonic plasma looked even better in terms of the puck, soccer ball or american football not pixelating.
If I remember back a few years I'm sure I read that this was all BS. The Sky TV feed at the time didn't go above 100hz so in theory it shouldn't make any difference as long as you bought a 100hz or higher TV.
Scouring the web it seems, neither BluRay or DirectTV go above 120hz so technically this shouldn't make any difference?
I'm wondering if its just psychological, the sources used at the shops or if there really is a good reason to consider the hz rating.
Anyway apprechiate your thoughts and experience..
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post #2 of 13 Old 03-14-2013, 08:23 AM
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a 120Hz TV is recommended, 240Hz is for 3D stuff.
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when watching 3D with active shutter technology, you will need 240Hz to achieve the same result (as a 120Hz TV) because each eye receives only half of the frames. You will also see less flickering if you are using Active Shutter at that speed.
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post #3 of 13 Old 03-14-2013, 08:26 AM
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Originally Posted by 8mile13 View Post

a 120Hz TV is recommended, 240Hz is for 3D stuff.
For Passive 3d the rating does not matter. Just effects active.
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post #4 of 13 Old 03-14-2013, 08:36 AM
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From my understanding, TV manufacturers use post processing software, and that's why they list these TVs as "clearmotion 480," it's not 480hz, it's 60 or 120hz, the 480 is just their software....doesn't add much if any. My Sony HX850 is listed as having "Motionflow 960".
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Originally Posted by Gregck View Post

From my understanding, TV manufacturers use post processing software, and that's why they list these TVs as "clearmotion 480," it's not 480hz, it's 60 or 120hz, the 480 is just their software....doesn't add much if any. My Sony HX850 is listed as having "Motionflow 960".

There is normally a native hz rate (if you dig around) and the post processing rate. Personally I ignore the later.
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post #6 of 13 Old 03-14-2013, 08:44 AM
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TV models like the current Sony XBR, with all the processing that goes into picture and motion, I have noticed seem a lot smoother than other TVs that claim 240Hz. I have an old Sony (60") Wega LCD projector which doesn't seem to have much motion blur at all. However most 55"+ LCD/LED TVs being sold right now at 120Hz I notice a lot of blur in. Motion Interpolation drives me absolutely nuts.

I've played FIFA and watched sports on a number of different sets. Obviously it plays smoothest on a plasma, but for some strange reason my LCD projector plays smoother than flat panel LCDs. I definitely notice more blurring as the screen gets larger. I think the 90" and 80" Sharp models have horrendous motion handling. I have seen footballs split into two. However the Sony 30ES projector seems a bit better than both of those sets projected to a 90+" screen. Maybe I have a boner for Sony?

These are all my subjective observations, as I have noticed some people love motion interpolation and have different motion/viewing preferences. I've noticed that the 240Hz almost always make a difference, but still isn't high enough for my own personal taste.

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post #7 of 13 Old 03-14-2013, 08:46 AM
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Quote:
Originally Posted by eric3316 
For Passive 3d the rating does not matter. Just effects active.
I do not care for 3D but if i did i definitely would not watch passive 3D stuff smile.gif
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post #8 of 13 Old 03-14-2013, 10:03 AM
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So do Hz ratings really make any difference..

I've seen side by side comparisons of 60 vs 120 and that's a noticeable difference and a spec worth paying for, absolutely. I've also seen side by side comparisons with nearly every top tier brand, of 120 vs 240 and I've never seen a discernable difference, or atleast something worthy enough of making me pay extra for the 240Hz alone.

Quote:
I looked at the Sharp 640u in BB and it was absolutely horrible when they had a football game on., the ball was pixelated and all in all a very bad picture

I certainly haven't been impressed with Sharp's video processing techniques and have found that from the 640 up the 847, and excluding the Elite, all handle their temporal resolution from average, to poor at best.
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and a 600hz top pf the range Panasonic plasma looked even better in terms of the puck, soccer ball or american football not.

In terms of handling sports, PDP's handle motion far better than most LCDs. Just the nature of the technology.
Also keep in mind that "600Hz" in a PDP is different from 60, 120, 240, etc. in LCDs

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post #9 of 13 Old 03-14-2013, 11:30 PM
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I believe some companies like LG their advertised 55lm7600 tv is 240hz but the tv is actually just 120hz while the sony 55hx750 240hz is a true 240hz panel that has motionflow of 480hz, samsung es7100 is a true 240hz panel as well. LG and some other companies does fake advertisement claiming their tv is 240hz but it really isn't

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I'm still not convinced with 120hz TVs. My LG doesn't really look any different during a UFC event or football match to me anyways. Regular programing looks weird and definitely suffers from the soap opera effect. If you're watching active 3d at 120hz would the 2d heavy scenes appear to have that soap opera effect? It could all be corrected now seeing as how my TV is three years old. (LE5400)

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post #11 of 13 Old 03-15-2013, 02:41 AM
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Quote:
Originally Posted by Lethean View Post

I'm still not convinced with 120hz TVs. My LG doesn't really look any different during a UFC event or football match to me anyways. Regular programing looks weird and definitely suffers from the soap opera effect. If you're watching active 3d at 120hz would the 2d heavy scenes appear to have that soap opera effect? It could all be corrected now seeing as how my TV is three years old. (LE5400)

Here's a fix to your problem:
Buy a PDP biggrin.gif

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post #12 of 13 Old 03-15-2013, 07:33 AM
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Quote:
Originally Posted by Lethean View Post

I'm still not convinced with 120hz TVs. My LG doesn't really look any different during a UFC event or football match to me anyways. Regular programing looks weird and definitely suffers from the soap opera effect. If you're watching active 3d at 120hz would the 2d heavy scenes appear to have that soap opera effect? It could all be corrected now seeing as how my TV is three years old. (LE5400)

Not convinced of what exactly?

If you have a soap opera effect, your motion correction is problem turned on high or a setting that is not to your liking. The following post is pretty on the spot. If you watch UFC Football and 3D and don't like the motion, you should consider a plasma.

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post #13 of 13 Old 03-15-2013, 08:57 AM
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Quote:
Originally Posted by skidawgz View Post

Not convinced of what exactly?

If you have a soap opera effect, your motion correction is problem turned on high or a setting that is not to your liking. The following post is pretty on the spot. If you watch UFC Football and 3D and don't like the motion, you should consider a plasma.

Gah. It should have read "still convinced of a difference between 120hz and 240hz." Sorry I was half thinking when I typed that up. And honestly, it isn't that I don't like the motion in sporting events it's that I never really notice a difference. (Then again I've only watched brief moments of football. I'll turn it on next time I watch a soccer match.) Also, do you guys use it when watching movies? I didn't know changing other settings would have an impact on the soap opera effect. I'll try setting it to low.

But yeah, to the question at hand, when I've seen it displayed in stores I never really picked up on a difference between 240 and 120, especially since it isn't a true 240. Hell, I wish my TV was a true 120 so my PC could set the refresh rate to 120hz for my games.

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