Question about 24hz on a 60hz HDTV? - Blu-ray Forum

stockstar1138 · 02-03-2008, 12:34 AM

I have a Samsung ln-t4065f, Samsung said that this model supports 60hz and did not list 24hz support as a feature. I have heard a lot of people say they have 60hz HDTVs and have tried forcing 24hz on the TV and they complain that it made the picture very blurry. Out of curiousity today I decided to try the 24hz feature on my Samsung. Those copyright warnings and crap came up and I hit information to see that the TV was at least receiving a 24hz signal. My information said 1080i, Video Frequency - 60hz (for people who don't know those copyright warnings and stuff are done in 1080i). So, given that it was playing in 60hz, I just assumed that even though the PS3 was sending out a 24hz signal, the TV was displaying the video in 60hz, because supposedly thats all it supports. The movie started and I hit information again to see what it said and to my surprise it said 1080p Video Frequency - 24hz. I watched the entire movie and I would swear to god that the movie looked smoother. I saw no blurring at all, like others have complained. Now am I wrong when I say that the PS3 obviously wasn't forcing 24hz on my HDTV, because otherwise it would have forced those copyright warning ads into 24hz too. There did seem to be a little judder compared to those 120hz HDTVs that "guess" what the picture looks like to get that ultra-smooth look, but don't films naturally have a little judder to them? Am I imagining that it looked smoother or what?

BTW: My GF noticed a difference too.

JJ · 02-03-2008, 07:55 AM

Interesting. So you basically switched 1080p/24 to ON on the PS3 and fed it to the TV which is only 60? And you say it looked smoother? I may have to give this a try.

Phane · 02-03-2008, 03:32 PM

When I do this on my Samsung DLP, it just pops up a message saying that it's an unsupported video mode.

JJ · 02-03-2008, 05:03 PM

Well, I tried it by setting 1080/24 to ON, but so far I can't tell a diff. Maybe I'm watching the wrong movie - HP1 is what I put in. I'm still learning here!

ESUNintel · 02-03-2008, 05:59 PM

I have a dumb question...
...isn't 60HTz better than 24; isn't that why 120HTz TV sets are so popular? I thought the bigger the number, the better.

miked924 · 02-03-2008, 07:09 PM

Quote:

Originally Posted by ESUNintel

I have a dumb question...
...isn't 60HTz better than 24; isn't that why 120HTz TV sets are so popular? I thought the bigger the number, the better.

24 is better than 60 because film is shot at 24fps. 120hz produce a better picture with less frame judder because 24 goes into 120 but 24 does not go into 60. 60 as well goes into 120 making it a popular tv since it can accept both 24 and 60hz images. That's it in a nutshell, make sense?

ESUNintel · 02-03-2008, 07:27 PM

Quote:

Originally Posted by miked924

24 is better than 60 because film is shot at 24fps. 120hz produce a better picture with less frame judder because 24 goes into 120 but 24 does not go into 60. 60 as well goes into 120 making it a popular tv since it can accept both 24 and 60hz images. That's it in a nutshell, make sense?

I get it now; that's what a Sony rep was trying to explain, but managed to confuse me. Thanks for your help.

02-03-2008, 12:34 AM	#1
stockstar1138 Banned Member since:Apr 2007	Question about 24hz on a 60hz HDTV? I have a Samsung ln-t4065f, Samsung said that this model supports 60hz and did not list 24hz support as a feature. I have heard a lot of people say they have 60hz HDTVs and have tried forcing 24hz on the TV and they complain that it made the picture very blurry. Out of curiousity today I decided to try the 24hz feature on my Samsung. Those copyright warnings and crap came up and I hit information to see that the TV was at least receiving a 24hz signal. My information said 1080i, Video Frequency - 60hz (for people who don't know those copyright warnings and stuff are done in 1080i). So, given that it was playing in 60hz, I just assumed that even though the PS3 was sending out a 24hz signal, the TV was displaying the video in 60hz, because supposedly thats all it supports. The movie started and I hit information again to see what it said and to my surprise it said 1080p Video Frequency - 24hz. I watched the entire movie and I would swear to god that the movie looked smoother. I saw no blurring at all, like others have complained. Now am I wrong when I say that the PS3 obviously wasn't forcing 24hz on my HDTV, because otherwise it would have forced those copyright warning ads into 24hz too. There did seem to be a little judder compared to those 120hz HDTVs that "guess" what the picture looks like to get that ultra-smooth look, but don't films naturally have a little judder to them? Am I imagining that it looked smoother or what? BTW: My GF noticed a difference too.

02-03-2008, 07:55 AM	#2
JJ Blu-ray Baron Member since:Jul 2007 Location:Miami, FL Home Theater Gallery:115 Blu-ray collection:397 PS3 collection:24 Blu-ray reviews: 18 Trading Score:49	Interesting. So you basically switched 1080p/24 to ON on the PS3 and fed it to the TV which is only 60? And you say it looked smoother? I may have to give this a try. ███ ♠ - I didn't say that. Lee Majors did. ================ Sonus Faber - Pioneer Elite - Epik - Emotiva - Sony Orbis non Sufficit

02-03-2008, 05:03 PM	#4
JJ Blu-ray Baron Member since:Jul 2007 Location:Miami, FL Home Theater Gallery:115 Blu-ray collection:397 PS3 collection:24 Blu-ray reviews: 18 Trading Score:49	Well, I tried it by setting 1080/24 to ON, but so far I can't tell a diff. Maybe I'm watching the wrong movie - HP1 is what I put in. I'm still learning here! ███ ♠ - I didn't say that. Lee Majors did. ================ Sonus Faber - Pioneer Elite - Epik - Emotiva - Sony Orbis non Sufficit

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02-03-2008, 03:32 PM	#3
Phane Active Member Member since:Nov 2007 Location:Rochester, MN	When I do this on my Samsung DLP, it just pops up a message saying that it's an unsupported video mode.

02-03-2008, 05:59 PM	#5
ESUNintel Senior Member Member since:Aug 2007 Location:Colorado	I have a dumb question... ...isn't 60HTz better than 24; isn't that why 120HTz TV sets are so popular? I thought the bigger the number, the better.