Hi everyone! Is anyone using 65" 4S Mi TV have image quality issues playing HD online movies? I can see the different tones of black/grey or colours in patches or blocks. Also for fast moving fighting scences, the edge of object or person can become blurry. Is this normal for this TV? Sorry if i can't describe problem well. Please advice. Thanks.
What you encountered may be a combination of low bitrate video + motion smoothing.
(1) Bitrate
What is the bitrate of the online movie source that you're watching?
You could be watching an online movie -- that is streaming at low (i.e. poor) video bitrate.
Take note of the following 2 (basic) points first:
(a) Sit same distance + watch same bitrate video streaming:
The bigger the TV -- the worse the video quality looks.
(b) Sit same distance + watch using same TV:
The lower the bitrate video streaming -- the worse the video quality looks.
To help check that TV itself is OK...
(i) You may wish to make use of info in the 2 links below to adjust/calibrate TV settings closer to recommended display output:
https://bit.ly/2XjOZgX
https://bit.ly/2Lg5GHV
(There are tons of Web sites/links talking about TV calibration. You can Google/search more on TV calibration if you wish to.)
(ii)
After done the above...
* If you have (4K) Bluray player, watch a few (4K) Bluray movies on your TV -- this greatly helps to guage how things look (i.e. whether got "image quality issues") on the TV using a high quality bitrate source.
(Once you watched many 4K + HDR Bluray movies on your TV -- you may subsequently feel that a lot of online streaming sources are lacklustre -- due to the lower bitrate video. Haha..)
If wish to test only via online streaming -- since the Xiaomi 65" Mi TV 4S is a 4K TV..
* Watch some proper higher bitrate online video sources, e.g. 4K Netflix or 4K Youtube (or other high bitrate online sources).
Some possible 4K movies on Youtube:
https://youtu.be/iOW_7Vv3z9o
https://youtu.be/Mw4ss68BrH8 (4K 60fps?)
https://youtu.be/7NZP5pi4S_g
https://youtu.be/35vzQyXCWWc
https://youtu.be/MGyCyg4DFXI
https://youtu.be/3elOB1KmKRY (4K 60fps?)
https://youtu.be/O4EikO-SEnA
(
To avoid Youtube ads, you may wish to download/install/use 3rd party Android apps like
Smart Youtube TV,
SmartTubeNext or
Newpipe to watch Youtube.)
(2) MEMC: Motion smoothing function on Xiaomi TV
For the Xiaomi 65" Mi TV 4S, some people have feedback that video looks better if disable MEMC function on the Xiaomi TV.
Hope the above helps.