I have this issue too. Not sure if it's the same model, but I also have a Sony BRAVIA with Google connected to a Denon AVR.
What I have found as a somewhat annoying workaround is to change the volume on the TV with slow, deliberate presses of the volume buttons. If I hold down the volume button the AVR can't 'keep up' and the volume doesn't change as much on the AVR as it does on the TV. Slow presses of the volume buttons allow the AVR and TV to keep the volume in sync.
Not sure what your budget is, but I've been happy with this one.
I had one of these that lasted over 4 years before the motor or gears started rattling while it was grinding. It still worked, but was super noisy, and grinding beans isn't that quiet to start with. I ordered another one and it's had a few little improvements since I bought the first one, although nothing major. Equally happy with the new one.
I'm mainly using it for grinding beans for a french press. Your mileage may vary for other uses but, if I remember correctly, reviews for other uses seemed OK.