There are news articles about blocking certain live feeds (Periscope, etc.) so it's untrue that you should be able to mirror everything.
It appears that the technology is there but the stake holders don't want you to do this.
Hello, I'm having an issue mirroring live soccer from the bein connect app to my Samsung TV. I can stream the matches on both my Samsung Edge 7 and Samsung Tab A , however, when I try to mirror it to my Samsung Smart TV it goes thru the ad and then doesn't show the match. Not sure why that is when I would imagine you should be able to mirror whatever is being shown on your device. Any help would be appreciated. Thank you.