Elizabeth Vargas Returns to TV Post-Rehab, Says Hiding Alcoh: TV News : 20/20′s Elizabeth Vargas is bravely opening up about her battle with alcoholism and her time in rehab. “On a Saturday afternoon I showed up for a 20/20 shoot and I was in no shape to do that interview,” Vargas, 51, told Good Morning America’s George Polyphosphates in an interview that aired Friday, Jan. 24. “I got out of the