Galaxy S4 video problem I've bought S4 yesterday. 

Everything works great except recorded video or Youtube video starts to flicker/artifacts, green lines appears and eventually the video stops.

I've tried installing Nexus camera but that didn't work either.

Also when i play videos that are from my PC it works normally, no flicker or artifacts appears.

Tested for dead pixels but there is none:

Increased brightness to the max
Installed a free app called Dead Pixel Test by UJACHA from Google Play
Cycled through the colors and inspected the screen.

Here's the screenshots when playing youtube:




Dummy recording is here

Should i return the cell and demand a new one?
I'm returning it today because the video is non-watchable, contains flicker and artifacts obviously it's from a bad batch (defective units out of the box, april 2013). At least I've tested it and saw artifacts when casting YouTube video to Google Chromecast.