The video player is just awful
Regarding personal videos I can get it working by moving videos into a new folder in "pictures" - as long as they are local I can even search/fast forward with the slider making it easy to skip.
However, opening any kind of video link for streaming the slider is gone leaving only the skip 30 seconds button, even though its mostly working (but sometimes freezing the video - only fix is to reload it allowing you to hit "skip 30 seconds another million times) - every time you skip you also get to listen to cracking sounds for each increment - even on silent mode!!
Absolutely rubbish, I cant believe this was not updated with 8.1
I made the mistake of playing with a S5 today, though I refuse going back to android it kind of made me miss the days of "Dont like the built in stuff? Just replace the default player with something that works"
If only you could download the 1020 camera from play store