Originally Posted by BigCoolJesus
It's improper reproduction of 24fps material inside 60i/p content that sometimes bothers me.
There's a lot of talk about judder generically with judder just being a catch all for "not silky smooth motion." This wasn't always the case when it was referring to displays. Judder used to more specifically refer to motion artifacts caused by the 3:2 process.
I'm fine with 24fps motion on this TV. It's different than my 55ST50 or my W900A, but not inherently worse (or better.) 24fps isn't going to have silky smooth wide angle pans, there just aren't enough frames there to do it. However, when displayed with the proper cadence, it has CONSISTENT pans. For me, that's far more important. A lower FPS source doesn't bother me so much as long as it's a presented at a constant cadence. 24fps content looks very film like on this TV. Perhaps it doesn't look quite as film like as it did on my 55ST50 due to the nature of sample and hold, but it looks more like film than my W900A due to the instant pixel response. I saw "Hateful Eight" as the 70mm roadshow and it's been years since I've seen a movie on actual film and I was actually surprised by the level of flicker and 'judder' in pans. But such is the nature of film and is part of the experience.
Now, 24fps in a 60p/60i container is a sore spot for me. The W900A had a setting called MotionFlow TrueCinema which was fantastic. It was exceedingly good at reconstructing 24p cadence from 720p60 or 1080i60 content. I find this very important because inconsistent cadence is something that sticks out very badly for me. Having every other frame persist on screen just a little longer causes those "not fully smooth but consistent pans" to turn into "jumpy" pans.
I find that if I pass native 720p60 or 1080i60 to the TV from my TiVo, the TV handles it pretty well. If I let my TiVo upscale to 4k60 (which has a subtle increase in detail), motion isn't as smooth. It's most apparent on scrolling credits at the end of movies. I see similar things with my SHIELD. If set it at 4k60, there's a subtle hitch going on that's telltale 3:2 issues but if I force it to 24hz output everything is smooth.
What I haven't experimented with much is feeding it 1080p60 signals from the TiVo or shield to see if it's only the 4k upscaling part that's tripping up reversing 3:2. I think I do recall seeing the issue with 1080p output from my Roku, but it may not have been as bad as 4k60 or it may have been a source issue.
So, there are workarounds and even when the issue is there it isn't enough to make me write off the other advantages of the TV. But if I could graft MotionFlow on to this TV, I would do it in a heartbeat. Similarly, if Sony starting buying these panels from LG for their own TVs, I would seriously consider trading in.
It really sucks that we went clean slate with new standards and didn't make 1080p24/720p24 part of it from the beginning. The vast majority primetime content out there is 24fps, yet we're stuck with these holdovers from CRT days for transport signals. What's more egregious is that passthrough 24p is so rare on streaming devices. My TiVo will do it for Netflix, HBO Go, Hulu, and Amazon, but every other device just wants to upscale everything to 1080p60 or 4kp60.