Not long ago I read an article about a high school teacher who, in the course of cultural history class, played the video footage of Garland singing "Battle Hymn of the Republic" to a clearly disinterested class--but when the tape ended the room was silent until one of the students, astonished at Garland's power, asked "How can you sing like that and still be alive?"  The answer is that you can't, and Judy Garland, who was arguably the greatest star of golden age Hollywood and easily among the great vocalists of the twentieth (or any other) century, died in 1969 at the age of 47.  Created in 1985 for public television, JUDY GARLAND: THE CONCERT YEARS makes an effort to capture her lightening.