I've got a very old Denon AVR-485 connected to a 55" LG OLED BX and I would love to get the remote to control the volume for the Denon if possible. I had a Samsung TV where it did this through the optical. I have the TV set to optical out only, I have the LG sound -> additional - lg sound sync turned on. I also have connections -> device connection settings -> universal control settings setup with "Optical: Denon". After clicking no 4 or 5 times, the power did work and turn off the receiver. I then tried going back into it and searching by model and it found avr-485 that was as well. Still, the volume controls on the remote do not change the volume on the receiver. Any ideas?