[shultays]

I don't know if it would work on Sony TVs but a while ago I switched to Projectivy launcher on a Philips android tv and I am quite happy with it

Alternatively you can reset your TV to factory settings and then disable auto updates for TV and google play. You will probably want to check google play from time to time and manually update the apps you are using though (just don't update things like "home screen" or whatever that will put ads backs). I was doing that but I was not comfortable leaving my TV unupdated