How to Keep Amazon Echo and Google Home From Responding to Your TV

Voice assistants such as the Amazon Echo and Google Home are pretty smart, but they're not yet sharp enough to understand the difference between TV and reality. A Google commercial during yesterday's Super Bowl prompted Home to play whale noises, flip the hallway lights on, and recite a substitute for cardamom. As a series of actors barked "OK Google" commands on TV, the devices started doing what they were asked to do. Android phones with Google Assistant may have done the same thing. It was just doing its job.