My New Desktop Isn't Sending Sound to the TV - Help!

Hi everyone, I'm really at my wits' end here. I recently got a new desktop and connected it to my TV using HDMI. The video works fine, but I can't get any sound to come out of the TV despite the volume mixer showing activity and the correct device selected. I used to have my old system connected to the TV, and everything was perfect. Just to clarify, here's what I've already tried: - Reinstalled Windows - Updated both NVIDIA and AMD drivers - Verified Windows is fully updated - Tested different HDMI ports on the TV - Disabled the AMD audio device in Device Manager - Turned off audio enhancements in sound settings - Unplugged the TV for a few minutes then plugged it back in - Factory reset the TV - Ensured my TV is set as the default audio device - Reset my PC numerous times and tried different power sequences with the TV. When I connect my new desktop to my monitor, everything works including the sound. It's just the TV that's giving me trouble. I really appreciate any suggestions you might have!