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London Lite9,730 posts since 4 Jan 2003
London London
Saw this linked from another forum and thought it might be of interest to people here, given the issue of All4 not being on Apple TV has been raised before:





Hopefully this will mean they improve on the sub-SD quality too. Walter Presents from the current All4 stuff is unwatchable on a decent sized HD or UHD TV.


I wouldn't mind if C4 offered an ITV Hub+ style subscription to at least improve the resolution to 720p.

Ironically, I watch more ITV shows on the Hub since I pay for it.
VMPhil8,944 posts since 31 Mar 2005
Granada North West Today
I only have a standard HD TV and the previous standard HD only 4th gen Apple TV, so can't comment on UHD or HDR features I'm afraid.


Ah - the ATV4 doesn't include the new 'auto frame rate' option either does it? Think that is limited to the 4K (it comes along with the SDR/HDR switching option - as pre-tvOS 11.2 the 4K model was permanently HDR on HDR TVs, with non-ideal SDR->HDR conversion of SDR content)?

Which presumably means 23.976p stuff on Netflix/Amazon is also output at 59.94 with 3:2 judder on the ATV 4? ISTR that the ATV4 didn't offer 23.976p output as a manual choice for frame rate, so you couldn't force it either?

Very late reply - but I've just been investigating this, as my Apple TV recently informed me after an update that it had automatically changed to the correct resolution and refresh rate for my country (1080p at 50Hz). The 'Match Frame Rate' option does indeed exist on the Apple TV 4th gen (non-4K) model, it's just the 'Match Dynamic Range' option that doesn't for obvious reasons.


I was watching a 1080p60 video on YouTube that had noticeable judder on a panning shot, so tried enabling the 'Match Frame Rate' option, but it doesn't appear to work on YouTube videos. Changing the resolution to 60Hz eliminated the judder I was seeing, which confirms that it was 'Match Frame Rate' not working, and not just what the video looked like. I'll probably leave it at 50Hz since most YT videos I watch when on my Apple TV are 30 FPS.
noggin13,891 posts since 26 Jun 2001
I only have a standard HD TV and the previous standard HD only 4th gen Apple TV, so can't comment on UHD or HDR features I'm afraid.


Ah - the ATV4 doesn't include the new 'auto frame rate' option either does it? Think that is limited to the 4K (it comes along with the SDR/HDR switching option - as pre-tvOS 11.2 the 4K model was permanently HDR on HDR TVs, with non-ideal SDR->HDR conversion of SDR content)?

Which presumably means 23.976p stuff on Netflix/Amazon is also output at 59.94 with 3:2 judder on the ATV 4? ISTR that the ATV4 didn't offer 23.976p output as a manual choice for frame rate, so you couldn't force it either?

Very late reply - but I've just been investigating this, as my Apple TV recently informed me after an update that it had automatically changed to the correct resolution and refresh rate for my country (1080p at 50Hz). The 'Match Frame Rate' option does indeed exist on the Apple TV 4th gen (non-4K) model, it's just the 'Match Dynamic Range' option that doesn't for obvious reasons.


I was watching a 1080p60 video on YouTube that had noticeable judder on a panning shot, so tried enabling the 'Match Frame Rate' option, but it doesn't appear to work on YouTube videos. Changing the resolution to 60Hz eliminated the judder I was seeing, which confirms that it was 'Match Frame Rate' not working, and not just what the video looked like. I'll probably leave it at 50Hz since most YT videos I watch when on my Apple TV are 30 FPS.


The ATV4 got match frame rate options one software release later than the ATV4K. They both now have it.

AIUI it's not driven by the actual frame rate of the video, but by metadata, and apps need to implement it. (And specifically not implement it in annoying ways - like some Netflix apps on some platforms which re-sync your TV as you switch between top-of-screen previews of 24 and 25p shows on the menu screen)
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DVB Cornwall7,742 posts since 4 Dec 2003
Westcountry Spotlight
BT have confused the punters on this ....

I detect that the App Update might have been released early, the marketing wasn't ready, even now automated ordering wont be available until Friday.

Now they say that when the price change kicks in in September then those who stay will get it free. So until September £5 a month, then the £5 will be taken off again. Silly.

Signed up .....

All the non Sky Channels are offered in SD, BT Sport Channels in HD. The whole non Sky BT Player catchup content is also available. Nice Product, especially the very quick EPG update when accessed.
For a first gen tvOS App I'd give it 8/10.

The next challenge will be offering it in a standalone format to non BT customers.
Last edited by DVB Cornwall on 4 July 2018 5:10pm
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noggin13,891 posts since 26 Jun 2001
I'll probably leave it at 50Hz since most YT videos I watch when on my Apple TV are 30 FPS.


Then shouldn't you leave it on 60Hz?


Yes - if you usually watch 30fps content on YouTube and it doesn't auto frame rate switch when you do - then 60Hz default output will be much better than 50Hz.
VMPhil8,944 posts since 31 Mar 2005
Granada North West Today
Further to the subject of YouTube videos and adaptive frame rate on the Apple TV, I've noticed that although it doesn't work in the app itself, it does work if you use AirPlay to show a YouTube video on the Apple TV. 24fps videos set the output to 1080/24p, 60fps videos set it to 60Hz. However 48fps videos are also output at 1080/24p, so actually look better in the app.
noggin13,891 posts since 26 Jun 2001
. However 48fps videos are also output at 1080/24p, so actually look better in the app.


48fps is a tricky format - as there is not really a mainstream HDMI video format that supports it effectively. 24fps is the least-worst option - 60Hz and 50Hz would both be very nasty.

HDMI 2.0-2.0b added (optional) support for 48Hz over HDMI (CEA-861-F) - but I don't know how widespread display or source support for that refresh rate is. I think 'HFR' movies are more likely to be 120Hz now (as that is backwards compatible with both 60Hz and 24Hz) and that was what Ang Lee did with 'Billy Lynn's Long Half Time Walk' which was shot 120p but released 60p on UHD Blu-ray.
james-20013,710 posts since 13 Sep 2015
Central (East) East Midlands Today
Couldn't you get 48fps up to 50fps with the same speedup used to show 24p movies in 50i? Admittedly doesn't solve the issue of showing it in a 60Hz environment, but better than nothing. I find it a shame they've not tried to do that with any home video releases or TV Showings of the Hobbit movies, and they're either 24p or 25p with PAL speedup. I found the HFR very impressive in the cinema, and it's a shame we can't see it at home.