Scene from A&E's Mad Men episode.
"Psalm 137 is one of the best known of the Biblical psalms. Its opening lines, 'By the rivers of Babylon...' (Septuagint: 'By the waters of Babylon...') have been set to music on several occasions...by many composers. The first verse was also used for Don Mclean's song 'Babylon'." Mclean's version is played in the above video.