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MY83518 posts since 16 Nov 2016
I used to work nightshifts in work. No on-demand or streaming or bells and whistles on their messroom tv. Just Dave, Pick or Challenge showing the same old repeats inamongst the casinos, shops and boobs.
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GMc gave kudos
noggin14,116 posts since 26 Jun 2001
I have Amazon TV on my TV but it's very juddery. High Castle is fine but Grand Tour flickers all over the place.


Grand Tour series 1 was 24p, same frame rate as High Castle.
Grand Tour series 2 onwards is 25p (as is most European content on Amazon and Netflix - including The Crown)

If your Smart TV runs at a fixed 60Hz refresh rate (which many do) you will see far more judder on 25p content than 24p (where 3:2 will be used which is less noticeable to many)

It's one reason why using an external device for OTT streaming (IF it supports dynamic frame rate switching) still makes sense for many.

Also the studio elements of Grand Tour have some quite fast camera moves that expose the poor motion rendition of 24/25p capture. (Top Gear uses 50Hz for 'studio' elements, giving twice the number of images per second and much more fluid motion. Only a couple of Netflix test sequences seem to run at >30Hz, and I've not seen any Amazon content at >30Hz)

European TV content is usually shot at 25Hz or 50Hz.
US TV content is usually shot at 24Hz, 30Hz or 60Hz. (Technically 23.976, 29.97 and 59.94Hz)
Movies are almost universally shot at 24 or 23.976Hz.
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London Lite gave kudos
London Lite10,003 posts since 4 Jan 2003
London London
I can watch High Castle at 50Hz with no major issues on the Shield. Just a shame the Prime Video app hasn't been enabled on the 4K Now TV box, so I can watch at 24Hz without having to manually adjust the frame rate.
noggin14,116 posts since 26 Jun 2001
I know Amazon's coverage of the US Open went to 60p after a few days, with so many complaints of how awful it looked at 30p.


US Open Tennis? That stayed at 29.97p throughout the tournament. The streaming quality improved - but it stayed at 29.97p.
noggin14,116 posts since 26 Jun 2001
I can watch High Castle at 50Hz with no major issues on the Shield. Just a shame the Prime Video app hasn't been enabled on the 4K Now TV box, so I can watch at 24Hz without having to manually adjust the frame rate.


Really? It looks terrible at 50Hz on my Shield TV. I have to manually switch to 23.976Hz using the TVHZ app (or in the Display Settings) to make it watchable. For 50Hz output of 23.976Hz content 1 source frame a second is usually shown more than the others - giving it a tell-tale jerkiness - with additional frame repeats every 40 seconds or so (to cope with 23.976 vs 24.000)


(You don't have any motion processing enabled on your TV do you? That can often 'smooth out' asymmetric frame repetition judder.)
Last edited by noggin on 6 January 2019 1:16pm
james-20014,339 posts since 13 Sep 2015 Recently warned
Central (East) East Midlands Today
I know Amazon's coverage of the US Open went to 60p after a few days, with so many complaints of how awful it looked at 30p.


US Open Tennis? That stayed at 29.97p throughout the tournament. The streaming quality improved - but it stayed at 29.97p.


I know the clips that BBC News showed (with the Prime DOG in the corner) changed from film to video look after a few days, so I'd assumed they'd altered the streaming frame rate... unless the BBC had access to a different feed from amazon.

The idea of a sporting event only being available as a 24/25/30p web feed is pretty awful anyway. One of the real downsides of internet streaming taking over.
noggin14,116 posts since 26 Jun 2001
I know Amazon's coverage of the US Open went to 60p after a few days, with so many complaints of how awful it looked at 30p.


US Open Tennis? That stayed at 29.97p throughout the tournament. The streaming quality improved - but it stayed at 29.97p.


I know the clips that BBC News showed (with the Prime DOG in the corner) changed from film to video look after a few days, so I'd assumed they'd altered the streaming frame rate... unless the BBC had access to a different feed from amazon.

AIUI the BBC had access to a separate feed and weren't recording OTT.