Alexa now (officially) works with Logitech's Harmony Hub, meaning it's a lot easier to get voice control over your home entertainment and automation devices. After you enable the Alexa skill on an Amazon Echo, Dot or other supported device, you'll be able to start and stop Harmony Activities, change channels and control devices using the AI assistant. Simple commands include "Alexa, turn on Netflix," or "Alexa, turn on my TV." You also get a certain amount of programmability, thanks to Logitech's Activities. If you say "Alexa, turn on my evening activity," the bot will trigger a prearranged sequence that can involve entertainment as well as home automation devices. For instance, it can dim the lights, lower your blinds, adjust the temperature, flip on the TV and load up HBO Now or Netflix -- all in one sequence.