Sony just announced that owners of Sony 4K HDR TVs running Android TV are now able to use Google Assistant right from the TV remote. All you have to do is press the microphone button and away you go. You can do things like ask the weather, play youtube or nexflix, and even home automation. Not all TV models are supported though. 2017 models and only some 2016 models are able to use this feature. Go here for the full list.