According to biographer Clinton Heylin, "There remains a common belief that was forced by Columbia to pull 'Talkin' John Birch Paranoid Blues' from the album "after" he walked out on "The Ed Sullivan Show"." However, the "revised" version of "The Freewheelin' Bob Dylan" was released on May 27, 1963; this would have given Columbia Records only two weeks to recut the album, reprint the record sleeves, and press and package enough copies of the new version to fill orders. Heylin suggests that CBS had probably forced Dylan to withdraw "John Birch" from the album some weeks earlier and that Dylan had responded by recording his new material on April 24. Whether the songs were substituted before or after "The Ed Sullivan Show", critics agree that the new material gave the album a more personal feel, distanced from the traditional folk-blues material which had dominated his first album, "Bob Dylan".