The official DVD, despite being 4 hours long, only has slightly more than half of the selections that day (Yep, that's right, a whole day). Here is most of the material that only aired once. Not available in stereo like the official releases, but I did what I could to clean up the broadcast audio.
Conductors: James Levine, Richard Bonynge, Jeffrey Tate, John Pritchard, Thomas Fulton
00:14 Die Walküre: Act I Duet - Jessye Norman, Jess Thomas
16:01 Carmen Quintet - James Courtney, Isola Jones, Shirley Love, Charles Anthony, Louise Wohlafka
21:45 Dio mi potevi - James McCracken
26:39 Bess you is my woman now - Evelyn Lear, Thomas Stewart
32:34 Carmen - Habañera - Regine Crespin
37:28 Man of La Mancha medley - James Morris
43:47 When the sky grows brighter - Richard Cassilly
49:49 Die Zauberflöte - Papagena-Papageno Duet - Betsy Norden, Christian Boesch
53:23 Reverenza! - Bianca Berini, Louis Quilico
59:14 Prince Gremin's Aria - Paul Plishka
1:06:15 Ch'ella mi creda - Giuseppe Giacomini
1:09:30 Là ci darem la mano - Myra Merritt, John Cheek
1:13:43 O Mimì tu più non torni - Gösta Winbergh, Vernon Hartman
1:19:17 Viens Mallika - Jean Kraft, Mariella Devia
1:26:48 Signorina in tanta fretta - Barbara Daniels, Italo Tajo
1:36:55 Wie aus der Ferne - Carol Neblett, Simon Estes
1:54:10 Ebbene Donnina innamorata; Nemico della patria - Cornell MacNeil, Andrea Velis
2:02:16 Fu la sorte - Martina Arroyo, Mignon Dunn
2:14:57 Dio, che nell'alma infondere - Pablo Elvira, Ermano Mauro
2:22:21 Sweethearts (Maytime) - Anna Moffo, Robert Merrill
2:26:53 Vanessa Quintet - Johanna Meier, Regina Resnik, Rosalind Elias, John Alexander, John MacCurdy
2:31:12 Vecchia zimarra - Jerome Hines
2:34:21 L'amo come il fulgor del creato! - Lucine Amara, Bianca Berini
2:39:04 Allmächt'ger Vater - Timothy Jenkins
2:48:11 Va pour Kleinzach - Neil Shicoff (Incomplete)