Newbie here. We just moved into a home that has 5.1 surround speakers pre-wired and installed into the walls of the living room. I have a TCL Roku 4K TV that has both HDMI ARC and optical audio out. I’d rather not buy a receiver if I don’t have to and I run my peripherals through my TV anyway. Is there some sort of converter available where I could wire the speakers in on one end and then plug into the HDMI ARC outlet or optical out on the other? I’d like it to simply be TV—>?—>surround speakers Thanks.