Up ‘Next’ on TV — an artificial intelligence threatens humanity

Alexa is directly responsible for a new television series that premieres Tuesday on Fox.You know, Alexa — Amazon’s artificial intelligence personal assistant that millions of Americans have in their homes. Including Manny Coto, who has written and run TV shows ranging from “Star Trek: Enterprise” to “Dexter” to “24.”The idea for his new series, “Next” (Tuesday, 8 p.m., Fox/Ch. 13), came one morning when Coto asked his son why he was loo