I'm not declaring victory yet but I 'may' have fixed it. Many articles I read say the same thing, go into Device Manager and check the display drivers. I did that and clicked on Update Drivers and it says the most recent drivers are already installed including just now so no help there. It just occurred to me that AMD may have newer or maybe different optional drivers available anyway so I went to their website and yes, there is a whole suite of graphics software available for my chipset so I installed it and for the first time since I plugged in my new TV 4 days ago I did not lose the sound when I changed the input on my amp. Fingers crossed and it will take some time to confirm this but that could have fixed it.

Bob

Biab/RB latest build, Win 11 Pro, Ryzen 5 5600 G, 512 Gig SSD, 16 Gigs Ram, Steinberg UR22 MkII, Roland Sonic Cell, Kurzweil PC3, Hammond SK1, Korg PA3XPro, Garritan JABB, Hypercanvas, Sampletank 3, more.