Yesterday, Netflix released an iOS app that will make it possible to control games on TV sets.
Netflix itself describes the controller in the App Store:
Coming soon to Netflix. Play games on your TV with the Netflix Game Controller. This Game Controller app pairs with your TV and allows you to play games on Netflix using your phone or mobile device.
As known, Netflix launched a mobile game initiative two years ago. There have also been discussions about Netflix releasing games that can be played directly on the TV, and this seems to be coming soon. However, there is currently no information available regarding which Netflix games will potentially be supported for play on TV sets.