If you've ever downloaded an app from Google Play, you're aware that there's a rating and review system which gives you insight into what the user sentiment of the app really is. THat's missing from the Play Store on Android TV. Google has admitted that the feature has been omitted since there's no simple way to input text with Android TV unless you are using your phone. Fortunately, the Android TV team is working on a solution. We just don't know when said solution will be rollout out.