Originally Posted by mitico303
no, you're wrong: the 2014 Bravia 4K series can't play 4K videos from the integrated YouTube app. It was discussed a lot on this thread, but the maximum resolution available with the YouTube app is 1080p. they need VP9 codecs in order to play 4K videos from YouTube, and they're available only from the 2015 series..
However, it isn't just YouTube.. and i'm not talking about useless apps, i'm talking about apps for multimedia purpose: music streaming services (spotify, play music), video apps (like vimeo), a decent web browsing, cloud services, eccetera..
so why there's Android on the 2015 series?
After doing some research, the above may be correct. The current you tube app in the 2014 x900b series can play 4k videos.. However it might only be playing them in 1080.
I did some research and it turns out google has just recently starting forcing VP9 codec on all their 4k videos. This just happened in 2015, so all the 2014 and lower TV's didn't even know Vp9 existed therefore can't decode.
However you I did read you can manually download a youtube 4k video and play it via usb stick (or DLNA) to your tv to see True 4k (What I don't understand, if you download and it's still VP9 I don't see how that would work via usb.)
My main question is can't they just upload the VP9 codec via firmware update? I read somewhere that the VP9 codec has to be embedded in a special chip, but isn't that what firmware updates are for in the first place?
I'm not too concerned as the industry is pretty set on h.265 and only google (though a big player now that they own youtube) is promoting VP9.
Tests show VP9 encodes 2x as fast as H.265, however the compression quality and CPU usage of the decoding is negligible.