OK, House. Get Smart: Make the Most of Your AI Home Minions

Amazon Echo can play music and all, but Google Home rules as a party DJ, is a better match for movie night, and has superior sound. But Home's real strength is as a control center for playing music and video around the house. You can use it to speak commands to any smart TV or speaker that has Chromecast built in. If your devices aren't that intellectually advanced, just plug in a Chromecast dongle for audio ($35) or video ($35 for 1080p, $70 for 4K) where you need it. Here's how to set up your system for optimal voice-guided entertainment.