Same here, read the thread and I have the exact same issues. Flickering in Netflix and sometimes youtube (only the controls flicker) I noticed the problem when i turned the netflix video to fullscreen and it immediately caused a flicker for a fraction off a second when the controls faded. The vhs-effect (right too left flicker) started on safari recently. turning off subs might fix the issue, have not had time to be fully sure about the subtitles fix.
I have been investigating the problem for about a month and I have found that turning off ''hardware acceleration'' on chrome fixes the issue on Netflix but that it only causes more flickering in Facebook when you scroll the timeline and videos load. Also youtube controls flicker when turning off hardware acceleration on chrome. I switched to safari and about 3 days ago the ''vhs-effect'' started happening. I have not tried firefox.
I have tried everything except for reseting the MacBook as a new computer, no fix removes all the issues, some fixes removes one flicker but causes others.
I was so scared this was a hardware issue but i guess not. My Macbook pro retina early 2015 is brand new, like 3 months old. Guess we just have to wait and see if a patch pops up in the near future 🙂
*Also* When visiting flash-player heavy sites (Like sites that have a lot of gifs, tumblr) I noticed that when turning off hardware acceleration the screen will get ''black boxes'' appearing on the screen when scrolling. When browsing on Netflix and bringing the cursor over movies will cause the same flickering black boxes.