Anita Chanko could not sleep. At 4 a.m., on an August night in 2012, she settled onto the couch in her Yorkville living room with her dog, Daisy, and her parrot, Elliott, and flipped on the DVR. On
came the prior night’s episode of “NY Med,” the popular real-life medical series set at NewYork-Presbyterian Hospital, starring Dr. Mehmet Oz. Mrs. Chanko, 75, was a fan of the show and others like it.