Hi Guys,
I bought a new TV (Panasonic EX750T) which supports 4K and HDR then i connected it to the soundbar (LG HS7) and PS4 pro via HDMI cables as below.
PS4 <-> Soundbar (HDMI In)
Soundbar <-> TV (HDMI ARC)
But the picture showed only 2K so i reconnected them to have 4K picture as below...