I just got my first Android TV, a Philips 55" 55PUS6432. Is there a way to turn off the microphone thing that shows up every time you want to search for something? Doesn't matter if it's YouTube or some other app. It's really weird that this is what the TV does by default since my TV doesn't even have a microphone. If it isn't possible, what do you do when your TV doesn't have a microphone?
Does the remote app not have a built in mic? You can download the Android TV app to do voice search. I believe that is from the Google Assistant update. I just received an update with it. I will see if I can find out anything.
Update: I see what you are talking about. If you go into Settings > Apps > Permissions > Microphone and select turn off for each app it will then try to voice search and pull up the keyboard instead. In YouTube I did have to select "Deny, don't show again" after changing the setting.
I hope this helps for now!