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I have to say that my 92yo dad loves Alexa. He recently got Alexa set up to run his TV and to add appointments to his iPhone calendar. And with a simple, "Alexa, what do I have scheduled today," Alexa reads out what he has on his schedule for the day. Alexa interfaces with his Nest thermostat. So when he's cold, he just says, "Alexa, turn the heat to 72," and it's done. Alexa can check whether his garage door is open or closed.
I see an Alexa-enabled Smart TV in his future.