“Only a hermit could be unaware of Oprah Winfrey’s new magazine, and he’d have to be beyond range of television, newspapers, radio, records, and rioting fans,” someone said a couple of weeks ago, except it was actually thirty-six years ago and he was talking about John, Paul, George, and Ringo and the quote was on the back cover of “Meet the Beatles!” Still. Oprah Winfrey, Queen of All Media, put her latest unsinkable vessel in the water recently, and, in at least one magazine store on the Upper West Side, it caused a brief flareup of Oprahmania. Late in the afternoon a couple of days after the launch, just around the time that “The Oprah Winfrey Show” was starting, three female subjects of the Queen went into the shop and,…