How did an album about mental illness, mortality and the need for human empathy stay on the U.S. Billboard Charts for 741 weeks (14 years)? Nick Mason looks back on this boundary-pushing classic album.

Read more: Album of the Month – Pink Floyd ‘The Dark Side of the Moon’
Read more: Nick Mason’s Top 5 Albums Of All Time
Watch: Classic Album Sundays and John Peel Archive present Nick Mason on ‘A Saucerful of Secrets’ Video