My favorite smartwatch app lets me control my Android TV with hand gestures

Most smart TVs use the Google TV interface, which is widely accepted as one of the best TV UIs. It also has the best functionality in terms of app compatibility, since you get Google's Play Store with its massive library of apps. I've used a Google TV-backed smart TV for half a decade, and it's a pleasant experience for the most part. However, one cumbersome task is navigating the UI with the included remote. Every TV brand has its own custom remote with different navigation buttons.