New LG CX OLED with flashing line at bottom of screen when watching content on inbuilt Apple TV app

The Just Scan setting adjustment definitely isn’t a fix, watch See on AppleTV - flashing line is still evident a couple of minutes into the first episode no matter what Just Scan setting is selected.

I think the Just Scan setting adjustment on content displayed at 16:9 will hide the line by cropping the display slightly, though anything with black bars to the top and bottom of the screen cannot be masked as no amount of zooming / cropping will fix that.

Well my 65” LG E9 OLED had a software update last night and thank God it’s finally fixed no more flashing lines!

Hello, I just tried your recommended fix by turning on screen shift. Two things to note: 1. It fixes Letterbox movies like Enter the Dragon, however, it crops the picture ever so slightly. You are definitely losing 1 to 1 pixels with this feature turned on. 2. It does not work with movies like Batman 89 which doesn’t have black letter bars. If you own the movie just go to the scene where Bruce Wayne is trying to talk to Vicky vale to tell her he’s Batman. You can clearly see a line still flashing at the bottom of the screen.

I believe the problem lies with LG but it could be with Apple who knows. Both companies need to work together to fix that problem.

This does not FIX the issue. That advice only puts a band-aid on the issue and on films that don't have big letterbox bars the problem is still there. When you turn on screen shift it will crop the image, because its cropping the image the pixel on the lower part of the letterbox isn't exposed therefore you don't get that stupid line flashing at the bottom of the screen.

LG or Apple still need to fix this! Please don't accept this as a fix.

I use to think it was an LG side issue but how do you explain the flashing line not happening to all movies? For instance, no flashing line for Sonic The Hedgehog, Jaws, Top Gun and more. But you get flashing line for Enter The Dragon, Batman 89, Batman Returns, Blade Runner 2048, E.T, Ghostbusters, The Banker etc etc. it’s so random it’s like it’s happening by title.

Hello everybody, I just got a call from Scott a senior level engineer who is on top of this issue. That’s the good news. The bad news is, he did not have a solid update on the problem. He informed me that higher level engineers are still looking at the issue and working toward a fix.

he will be giving me another follow-up call next week or sooner if a fix is in the works. I didn’t wanna mention to him that the Amazon prime app has the problem with Dunkirk the movie. The way I see it is, if they’re willing to work directly with LG engineers LG can then figure out a fix. If I tell them another app displays the problem Apple will just drop this case immediately. Honestly besides Dunkirk I had not experienced a flashing line on an Amazon prime movie in any type of format whether it be HDR or SDR.

UPDATE: Scott (Senior Engineer) called me back today to give me an update.

He said that the engineers could not see the problem clearly from the pictures and video footage I took. Scott, found this odd as he can clearly see the issue from what I sent him. So, he asked me to retake pictures and video but this time start the video up far back and slowly zoom my way in. By doing this I verified that the problem is the bottom right pixel of the letterbox. Anytime that corner hits a light color or bright white pixel it creates that line.

Anyway, I retook the footage and he took down more of my information like the LG C9 serial number, Device ID, Dolby Vision Version, Webos Version. He also had me take screen shots of the Apple TV+ about screen to show what version I am using. He also had me take a screenshot of the analytics its picked up (turned it on during our first call, send report to apple).

Thats about it.......

I am hoping the new footage will clearly show their top level engineers what the problem is.

Apple released an ATV APP update today for the C9 and CX. They are definitely trying to fix the issue because they now lock you out if changing the screen size like the Netflix app. However, the problem is still there.

I have a 65" LG E9 that has this same issue and have looked everywhere and even emailed a TV guru on blu-ray.com with no response. I prefer to use the AppleTV app over the AppleTV 4k box. The app is perfect other than that annoying line. I would have to turn just scan off and the screen shift on. The latest AppleTV app update now you can't adjust Just Scan off or on anymore it is not an option. Please Apple fix this.

Side note - Also Apple please hire me to work with movie distributors to get the latest versions of movies that are in 4k or newly remastered on blu-ray to AppleTV for example An American Werewolf in London and Robocop the remastered Arrow versions and anything Shout Factory remastered especially any John Carpenter movies and the newly remastered Flash Gordon... Also Total Recall is in the wrong aspect ratio.

Just a comment that whilst some CX users are reporting this as fixed, I personally still have the flashing line on my CX which is up to date - this is clearly not fixed.

Additionally, I don’t see this as an apple issue, more so, an LG issue, as the same flashing line has been reported on Plex, so seems more than just an apple bug. The line does not appear on the Amazon Fire Cube Apple TV app.

It is irritating, but do not see this being fixed given the length of time it has been going on.

Just to add, I updated my TV (and app) this morning and the issue appears to have been resolved!

I tested the content where the line would appear most for me and it is no more.

I did check out the Ted Lasso trailer however and the line did rear it’s ugly head again but it doesn’t appear on any other content nor trailer for that matter.

Have you also tested on the content where this would appear most for you?

I have the same issue with my LG c9 55’. I happens all the way through “The Gentleman” and “Bad Boys”. It’s is really annoying. Since you added the app to more devices I have started buying content from Apple again but this will send me back to Amazon if it’s not fixed. There is a thread on Reddit about this too if you search. LMK if you want screenshots or a video.

Glad you mentioned this as I was experiencing the same issue on my new LG CX watching Joker on the AppleTV app last night. I was worried it was the TV, but have been testing other content through Prime, Netflix, Sky, YouTube, etc with no issue.

It was really irritating and despite liking AppleTV, means I’ll avoid the app until there is a fix.