Audio segments related to performances by the comedy group The Credibility Gap in connection with the Pop Chronicles. The segments do not form a full program, the tracks apparently include material that was prerecorded for use in the assembly of a program, with some repetition from one track to the next.

Recording of John Gilliland interviewing Jerry Lee Lewis in Hollywood for the Pop Chronicles radio program series.

Recording of John Gilliland interviewing producer Bob Johnston in Pasadena, California for the Pop Chronicles radio program series.

Recording of John Gilliland interviewing producer and director Lou Adler in Bel Air, California for the Pop Chronicles radio program series.

Recording of John Gilliland interviewing guitarist Chet Atkins in Nashville for the Pop Chronicles radio program series.

Sound recording of Margaret Parx Hays and another woman addressing Hays' mother while in Hong Kong, China in January of 1964.

This recording is a part of the radio series “Toscanini: The Man Behind the Legend,” which was a tribute to conductor Arturo Toscanini. The broadcasts consist of music performed by the NBC Orchestra as well as interviews with composers, conductors, orchestra members, and other people associated with Toscanini. This segment includes performances of Beethoven's Leonore Overture No. 3, Barber's Adagio for Strings, Mozart's Bassoon Concerto No. 1, and interview with Remo Bolognini.

Audio recording of Marguerite Oswald's statement at a press conference following the assassination of President John F. Kennedy by her son, Lee Harvey Oswald, and interviews with Walter Robertson and Doug Lord on the topic of boxing.

Audio recording of interviews with George H. W. Bush, Barry Goldwater, Mike McKool, Carolyn Choate, Ben Atwell, William Clark, and others on political parties, the 1964 election, and Lee Harvey Oswald.

Audio recording of radio coverage of the Jack Ruby bond and change of venue hearings, including interviews with Stanley Marcus, Sam Bloom, and Melvin Belli.

This recording is a part of the radio series “Toscanini: The Man Behind the Legend,” which was a tribute to conductor Arturo Toscanini. The broadcasts consist of music performed by the NBC Orchestra as well as interviews with composers, conductors, orchestra members, and other people associated with Toscanini. This segment includes performances of Rossini's Overture to The Barber of Seville, Ponchielli's Dance of the Hours from La Gioconda and Haydn's Surprise Symphony, and an interview with baritone Frank Guarrera.

This recording is a part of the radio series “Toscanini: The Man Behind the Legend,” which was a tribute to conductor Arturo Toscanini. The broadcasts consist of music performed by the NBC Orchestra as well as interviews with composers, conductors, orchestra members, and other people associated with Toscanini. This segment includes a performance of selections from Verdi's Requiem and features "In Memoriam for Arturo Toscanini."

This recording is a part of the radio series “Toscanini: The Man Behind the Legend,” which was a tribute to conductor Arturo Toscanini. The broadcasts consist of music performed by the NBC Orchestra as well as interviews with composers, conductors, orchestra members, and other people associated with Toscanini. This segment includes performances of Gluck's Overture to Iphigenia in Aulis, Dukas's The Sorcerer's Apprentice and Brahms's Concerto for Violin and Cello.

This recording is a part of the radio series “Toscanini: The Man Behind the Legend,” which was a tribute to conductor Arturo Toscanini. The broadcasts consist of music performed by the NBC Orchestra as well as interviews with composers, conductors, orchestra members, and other people associated with Toscanini. This segment includes performances of Verdi's Te Deum and Hymn of the Nations, and features Toscanini: The Verdi Years.

This recording is a part of the radio series “Toscanini: The Man Behind the Legend,” which was a tribute to conductor Arturo Toscanini. The broadcasts consist of music performed by the NBC Orchestra as well as interviews with composers, conductors, orchestra members, and other people associated with Toscanini. This segment includes performances of Debussy's Iberia from Images, Wagner's Death and Funeral March from Die Götterdämmerung, and an interview with Walfredo Toscanini.

This recording is a part of the radio series “Toscanini: The Man Behind the Legend,” which was a tribute to conductor Arturo Toscanini. The broadcasts consist of music performed by the NBC Orchestra as well as interviews with composers, conductors, orchestra members, and other people associated with Toscanini. This segment includes performances of Weber's Overture to Euryanthe, Catalani's Prelude to Act IV of La Wally, Glinka's Kamarinskaya, Strauss's Till Eulenspiegel and an interview with Milton Katims.

This recording is a part of the radio series “Toscanini: The Man Behind the Legend,” which was a tribute to conductor Arturo Toscanini. The broadcasts consist of music performed by the NBC Orchestra as well as interviews with composers, conductors, orchestra members, and other people associated with Toscanini. This segment includes performances of Beethoven's Consecration of the House, Mozart's Divertimento No. 15, and an interview with Wilfred Pelletier.

This recording is a part of the radio series “Toscanini: The Man Behind the Legend,” which was a tribute to conductor Arturo Toscanini. The broadcasts consist of music performed by the NBC Orchestra as well as interviews with composers, conductors, orchestra members, and other people associated with Toscanini. This segment includes performances of Mendelssohn's Scherzo from A Midsummer Night's Dream and Tchaikovsky's Romeo and Juliet, and features an interview with composer and producer Don Gillis.

This recording is a part of the radio series “Toscanini: The Man Behind the Legend,” which was a tribute to conductor Arturo Toscanini. The broadcasts consist of music performed by the NBC Orchestra as well as interviews with composers, conductors, orchestra members, and other people associated with Toscanini. This segment includes performances of Wagner's Death and Funeral Music and Prelude to Act III of Lohengrin, and features an interview with Toscanini biographer Harvey Sachs.

This recording is a part of the radio series “Toscanini: The Man Behind the Legend,” which was a tribute to conductor Arturo Toscanini. The broadcasts consist of music performed by the NBC Orchestra as well as interviews with composers, conductors, orchestra members, and other people associated with Toscanini. This segment includes performances of Herold's Zampa Overture and Sain-Saëns's Danse Macabre, and features an interview with soprano Jean Tennyson.

This recording is a part of the radio series “Toscanini: Centennial Series,” which was a tribute to conductor Arturo Toscanini on the hundredth anniversary of his birth, and was a subset of the radio series "Toscanini: The Man Behind the Legend". The broadcasts consist of music performed by the NBC Orchestra as well as interviews with composers, conductors, orchestra members, and other people associated with Toscanini. This segment includes performances of Prokofiev's Symphony No. 1 "Classical" and Elgar's Enigma Variations.

This recording is a part of the radio series “Toscanini: Centennial Series,” which was a tribute to conductor Arturo Toscanini on the hundredth anniversary of his birth, and was a subset of the radio series "Toscanini: The Man Behind the Legend". The broadcasts consist of music performed by the NBC Orchestra as well as interviews with composers, conductors, orchestra members, and other people associated with Toscanini. This segment includes performances of Prelude to Act III of Tannhauser, Prelude to Act I of Parsifal, Prelude and Liebestod from Tristan und Isolde by Richard Wagner, and includes an interview with Fridla Wagner.

This recording is a part of the radio series “Toscanini: Centennial Series,” which was a tribute to conductor Arturo Toscanini on the hundredth anniversary of his birth, and was a subset of the radio series "Toscanini: The Man Behind the Legend". The broadcasts consist of music performed by the NBC Orchestra as well as interviews with composers, conductors, orchestra members, and other people associated with Toscanini. This segment includes performances of Requiem Mass in C minor by Luigi Cherubini.

This recording is a part of the radio series “Toscanini: Centennial Series,” which was a tribute to conductor Arturo Toscanini on the hundredth anniversary of his birth, and was a subset of the radio series "Toscanini: The Man Behind the Legend". The broadcasts consist of music performed by the NBC Orchestra as well as interviews with composers, conductors, orchestra members, and other people associated with Toscanini. This segment includes performances of Overture to Le di Figaro, Concerto for Bassoon and Orchestra, Symphony No. 35, movements III and IV by Wolfgang Amadeus Mozart and includes an interview with Ray Crissara.