Your Apple TV is about to get a bunch of handy new features. With today's release of tvOS 10, you can make better searches with Siri, control your HomeKit connected devices with your Apple TV remote and reduce some eye strain with the new dark mode. Siri now lets you combine multiple criteria in your searches. For example, you could say "show me horror movies starring Christopher Lee," or "show me crime TV shows from the '70s." Some third-party apps, like YouTube, now support Siri and deep links as well. If you were looking for a certain super-cute online video, you could say "search YouTube for cat parade."
You also use your Apple TV as a HomeKit hub now. Using Siri, you can turn off your connected lights or adjust the temperature of your home thermostat. Other improvements include a dark mode for using your Apple TV at night, and an Apple Music app redesign that features new Discovery and Favourites mixes (similar to Spotify's Discover Weekly playlist). The Photos app is also getting an update with the Memories feature. Your Apple TV will automatically create photo albums based on the location and dates of the photos, and Memories will also put together a short video compilation of your photos.
This update is missing "single sign-on", however. The feature, which was announced at WWDC, lets you sign in to multiple Apple TV apps that use your pay TV subscription credentials with just one login. Hopefully that feature makes its way to tvOS soon. You can learn more about the tvOS 10 update here.