I'm looking for a new TV where I can control most used features using speech only. That would be: volume control, channel selection, sleep timer. Some TVs have speech recognition, but as far as I've seen you have to press a button on a remote. But if I have to grab my remote anyway I'm faster using standard buttons. So is there any AndroidTV solution where I just can say something like "Ok Google switch to channel XYZ"?
Android TVs enable you to control volume, launch apps, set the sleep timer, etc. By using Google Assistant. You can even turn the TV on and off by using voice commands.
My Sony has a setting where I can either use the button on the remote like you are describing or I can use the standard 'Hey, Google' wakeup command.